diff --git a/tests/integration/BlogCore.integration.test.jsx b/tests/integration/BlogCore.integration.test.jsx
new file mode 100644
index 0000000..175b594
--- /dev/null
+++ b/tests/integration/BlogCore.integration.test.jsx
@@ -0,0 +1,171 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { render, screen } from "@testing-library/react";
+import RelatedArticles from "../../app/components/RelatedArticles";
+
+// Mock ContentThumbnailTemplate with a simple implementation
+vi.mock("../../app/components/ContentThumbnailTemplate", () => ({
+  default: ({ post, variant }) => (
+    <div data-testid={`thumbnail-${post.slug}`} data-variant={variant}>
+      <a href={`/blog/${post.slug}`}>
+        <h3>{post.frontmatter?.title || "Untitled"}</h3>
+        <p>{post.frontmatter?.description || "No description"}</p>
+      </a>
+    </div>
+  ),
+}));
+
+// Mock blog post data
+const mockRelatedPosts = [
+  {
+    slug: "resolving-active-conflicts",
+    frontmatter: {
+      title: "Resolving Active Conflicts",
+      description:
+        "Practical steps for resolving conflicts while maintaining trust",
+      author: "Test Author",
+      date: "2025-04-15",
+    },
+  },
+  {
+    slug: "operational-security-mutual-aid",
+    frontmatter: {
+      title: "Operational Security for Mutual Aid",
+      description:
+        "Tactics to protect members, secure communication, and prevent infiltration",
+      author: "Test Author",
+      date: "2025-04-14",
+    },
+  },
+  {
+    slug: "making-decisions-without-hierarchy",
+    frontmatter: {
+      title: "Making Decisions Without Hierarchy",
+      description:
+        "A brief guide to collaborative nonhierarchical decision making",
+      author: "Test Author",
+      date: "2025-04-13",
+    },
+  },
+];
+
+describe("Blog Core Integration", () => {
+  beforeEach(() => {
+    // Mock window.innerWidth for responsive tests
+    Object.defineProperty(window, "innerWidth", {
+      writable: true,
+      configurable: true,
+      value: 1024, // Desktop width
+    });
+  });
+
+  it("should render RelatedArticles component with correct structure", () => {
+    render(
+      <RelatedArticles
+        relatedPosts={mockRelatedPosts}
+        currentPostSlug="resolving-active-conflicts"
+      />
+    );
+
+    // Verify the section exists
+    expect(screen.getByRole("heading", { level: 2 })).toHaveTextContent(
+      "Related Articles"
+    );
+
+    // Verify thumbnails are rendered
+    expect(
+      screen.getByTestId("thumbnail-operational-security-mutual-aid")
+    ).toBeInTheDocument();
+    expect(
+      screen.getByTestId("thumbnail-making-decisions-without-hierarchy")
+    ).toBeInTheDocument();
+
+    // Current post should not be displayed
+    expect(
+      screen.queryByTestId("thumbnail-resolving-active-conflicts")
+    ).not.toBeInTheDocument();
+  });
+
+  it("should filter out current post from related articles", () => {
+    render(
+      <RelatedArticles
+        relatedPosts={mockRelatedPosts}
+        currentPostSlug="resolving-active-conflicts"
+      />
+    );
+
+    // Current post should not be displayed
+    expect(
+      screen.queryByTestId("thumbnail-resolving-active-conflicts")
+    ).not.toBeInTheDocument();
+
+    // Other posts should be displayed
+    expect(
+      screen.getByTestId("thumbnail-operational-security-mutual-aid")
+    ).toBeInTheDocument();
+    expect(
+      screen.getByTestId("thumbnail-making-decisions-without-hierarchy")
+    ).toBeInTheDocument();
+  });
+
+  it("should display all posts when no current post is specified", () => {
+    render(<RelatedArticles relatedPosts={mockRelatedPosts} />);
+
+    // All posts should be displayed
+    expect(
+      screen.getByTestId("thumbnail-resolving-active-conflicts")
+    ).toBeInTheDocument();
+    expect(
+      screen.getByTestId("thumbnail-operational-security-mutual-aid")
+    ).toBeInTheDocument();
+    expect(
+      screen.getByTestId("thumbnail-making-decisions-without-hierarchy")
+    ).toBeInTheDocument();
+  });
+
+  it("should handle empty related posts array", () => {
+    const { container } = render(
+      <RelatedArticles relatedPosts={[]} currentPostSlug="test-post" />
+    );
+
+    expect(container.firstChild).toBeNull();
+  });
+
+  it("should create correct links for each thumbnail", () => {
+    render(
+      <RelatedArticles
+        relatedPosts={mockRelatedPosts}
+        currentPostSlug="resolving-active-conflicts"
+      />
+    );
+
+    // Verify links are created correctly
+    const operationalLink = screen
+      .getByTestId("thumbnail-operational-security-mutual-aid")
+      .querySelector("a");
+    const hierarchyLink = screen
+      .getByTestId("thumbnail-making-decisions-without-hierarchy")
+      .querySelector("a");
+
+    expect(operationalLink).toHaveAttribute(
+      "href",
+      "/blog/operational-security-mutual-aid"
+    );
+    expect(hierarchyLink).toHaveAttribute(
+      "href",
+      "/blog/making-decisions-without-hierarchy"
+    );
+  });
+
+  it("should display section heading", () => {
+    render(
+      <RelatedArticles
+        relatedPosts={mockRelatedPosts}
+        currentPostSlug="resolving-active-conflicts"
+      />
+    );
+
+    expect(screen.getByRole("heading", { level: 2 })).toHaveTextContent(
+      "Related Articles"
+    );
+  });
+});
diff --git a/tests/integration/ContentProcessing.integration.test.js b/tests/integration/ContentProcessing.integration.test.js
new file mode 100644
index 0000000..ef52701
--- /dev/null
+++ b/tests/integration/ContentProcessing.integration.test.js
@@ -0,0 +1,98 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import fs from "fs";
+import path from "path";
+
+// Mock fs and path modules
+vi.mock("fs");
+vi.mock("path");
+
+// Import the content processing functions
+import { getBlogPostFiles, markdownToHtml } from "../../lib/content";
+
+describe("Content Processing Integration", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  describe("File System Integration", () => {
+    it("should read blog post files from content directory", () => {
+      const mockFiles = ["post1.md", "post2.md", "image.png", "post3.md"];
+      fs.readdirSync.mockReturnValue(mockFiles);
+
+      const result = getBlogPostFiles();
+
+      expect(fs.readdirSync).toHaveBeenCalledWith(
+        path.join(process.cwd(), "content/blog")
+      );
+      expect(result).toEqual(["post1.md", "post2.md", "post3.md"]);
+    });
+
+    it("should handle directory read errors gracefully", () => {
+      fs.readdirSync.mockImplementation(() => {
+        throw new Error("Directory not found");
+      });
+
+      const result = getBlogPostFiles();
+
+      expect(result).toEqual([]);
+    });
+
+    it("should filter out non-markdown files", () => {
+      const mockFiles = [
+        "post1.md",
+        "post2.mdx",
+        "image.png",
+        "post3.md",
+        "readme.txt",
+      ];
+      fs.readdirSync.mockReturnValue(mockFiles);
+
+      const result = getBlogPostFiles();
+
+      expect(result).toEqual(["post1.md", "post2.mdx", "post3.md"]);
+    });
+  });
+
+  describe("Markdown to HTML Integration", () => {
+    it("should convert markdown to HTML with proper formatting", () => {
+      const markdown = `# Main Title
+
+## Subtitle
+
+This is a paragraph with **bold** and *italic* text.
+
+- List item 1
+- List item 2
+
+[Link text](https://example.com)`;
+
+      const result = markdownToHtml(markdown);
+
+      expect(result).toContain("<h1>Main Title</h1>");
+      expect(result).toContain("<h2>Subtitle</h2>");
+      expect(result).toContain("<strong>bold</strong>");
+      expect(result).toContain("<em>italic</em>");
+      expect(result).toContain('<a href="https://example.com">Link text</a>');
+    });
+
+    it("should handle empty markdown gracefully", () => {
+      const result = markdownToHtml("");
+
+      expect(result).toBe("");
+    });
+
+    it("should handle markdown with special characters", () => {
+      const markdown = `# Title with Special Characters: & < > " '
+
+Content with **bold** and *italic* text.`;
+
+      const result = markdownToHtml(markdown);
+
+      expect(result).toContain(
+        "<h1>Title with Special Characters: & < > \" '</h1>"
+      );
+      expect(result).toContain("<strong>bold</strong>");
+      expect(result).toContain("<em>italic</em>");
+    });
+  });
+});
diff --git a/tests/integration/RelatedArticles.integration.test.jsx b/tests/integration/RelatedArticles.integration.test.jsx
new file mode 100644
index 0000000..e4678a3
--- /dev/null
+++ b/tests/integration/RelatedArticles.integration.test.jsx
@@ -0,0 +1,214 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { render, screen, fireEvent, waitFor } from "@testing-library/react";
+import RelatedArticles from "../../app/components/RelatedArticles";
+
+// Mock ContentThumbnailTemplate
+vi.mock("../../app/components/ContentThumbnailTemplate", () => ({
+  default: ({ post, variant }) => (
+    <div data-testid={`thumbnail-${post.slug}`} data-variant={variant}>
+      <a
+        href={`/blog/${post.slug}`}
+        data-testid={`thumbnail-link-${post.slug}`}
+      >
+        <h3>{post.frontmatter?.title || "Untitled"}</h3>
+        <p>{post.frontmatter?.description || "No description"}</p>
+      </a>
+    </div>
+  ),
+}));
+
+// Mock blog post data
+const mockRelatedPosts = [
+  {
+    slug: "resolving-active-conflicts",
+    frontmatter: {
+      title: "Resolving Active Conflicts",
+      description:
+        "Practical steps for resolving conflicts while maintaining trust",
+      author: "Test Author",
+      date: "2025-04-15",
+    },
+  },
+  {
+    slug: "operational-security-mutual-aid",
+    frontmatter: {
+      title: "Operational Security for Mutual Aid",
+      description:
+        "Tactics to protect members, secure communication, and prevent infiltration",
+      author: "Test Author",
+      date: "2025-04-14",
+    },
+  },
+  {
+    slug: "making-decisions-without-hierarchy",
+    frontmatter: {
+      title: "Making Decisions Without Hierarchy",
+      description:
+        "A brief guide to collaborative nonhierarchical decision making",
+      author: "Test Author",
+      date: "2025-04-13",
+    },
+  },
+  {
+    slug: "building-community-trust",
+    frontmatter: {
+      title: "Building Community Trust",
+      description: "Strategies for fostering trust in community organizations",
+      author: "Test Author",
+      date: "2025-04-12",
+    },
+  },
+];
+
+describe("Related Articles Integration", () => {
+  beforeEach(() => {
+    // Mock window.innerWidth for responsive tests
+    Object.defineProperty(window, "innerWidth", {
+      writable: true,
+      configurable: true,
+      value: 1024, // Desktop width
+    });
+  });
+
+  it("should filter out current post from related articles", () => {
+    render(
+      <RelatedArticles
+        relatedPosts={mockRelatedPosts}
+        currentPostSlug="resolving-active-conflicts"
+      />
+    );
+
+    // Current post should not be displayed
+    expect(
+      screen.queryByTestId("thumbnail-resolving-active-conflicts")
+    ).not.toBeInTheDocument();
+
+    // Other posts should be displayed
+    expect(
+      screen.getByTestId("thumbnail-operational-security-mutual-aid")
+    ).toBeInTheDocument();
+    expect(
+      screen.getByTestId("thumbnail-making-decisions-without-hierarchy")
+    ).toBeInTheDocument();
+    expect(
+      screen.getByTestId("thumbnail-building-community-trust")
+    ).toBeInTheDocument();
+  });
+
+  it("should display all posts when no current post is specified", () => {
+    render(<RelatedArticles relatedPosts={mockRelatedPosts} />);
+
+    // All posts should be displayed
+    expect(
+      screen.getByTestId("thumbnail-resolving-active-conflicts")
+    ).toBeInTheDocument();
+    expect(
+      screen.getByTestId("thumbnail-operational-security-mutual-aid")
+    ).toBeInTheDocument();
+    expect(
+      screen.getByTestId("thumbnail-making-decisions-without-hierarchy")
+    ).toBeInTheDocument();
+    expect(
+      screen.getByTestId("thumbnail-building-community-trust")
+    ).toBeInTheDocument();
+  });
+
+  it("should create correct links for each thumbnail", () => {
+    render(
+      <RelatedArticles
+        relatedPosts={mockRelatedPosts}
+        currentPostSlug="resolving-active-conflicts"
+      />
+    );
+
+    // Verify links are created correctly
+    expect(
+      screen.getByTestId("thumbnail-link-operational-security-mutual-aid")
+    ).toHaveAttribute("href", "/blog/operational-security-mutual-aid");
+    expect(
+      screen.getByTestId("thumbnail-link-making-decisions-without-hierarchy")
+    ).toHaveAttribute("href", "/blog/making-decisions-without-hierarchy");
+    expect(
+      screen.getByTestId("thumbnail-link-building-community-trust")
+    ).toHaveAttribute("href", "/blog/building-community-trust");
+  });
+
+  it("should handle empty related posts array", () => {
+    const { container } = render(
+      <RelatedArticles relatedPosts={[]} currentPostSlug="test-post" />
+    );
+
+    expect(container.firstChild).toBeNull();
+  });
+
+  it("should handle single related post", () => {
+    const singlePost = [mockRelatedPosts[0]];
+
+    render(
+      <RelatedArticles
+        relatedPosts={singlePost}
+        currentPostSlug="different-post"
+      />
+    );
+
+    expect(
+      screen.getByTestId("thumbnail-resolving-active-conflicts")
+    ).toBeInTheDocument();
+    expect(
+      screen.queryByTestId("thumbnail-operational-security-mutual-aid")
+    ).not.toBeInTheDocument();
+  });
+
+  it("should handle all posts being filtered out", () => {
+    const currentPostOnly = [mockRelatedPosts[0]];
+
+    const { container } = render(
+      <RelatedArticles
+        relatedPosts={currentPostOnly}
+        currentPostSlug="resolving-active-conflicts"
+      />
+    );
+
+    expect(container.firstChild).toBeNull();
+  });
+
+  it("should display section heading", () => {
+    render(
+      <RelatedArticles
+        relatedPosts={mockRelatedPosts}
+        currentPostSlug="resolving-active-conflicts"
+      />
+    );
+
+    expect(screen.getByRole("heading", { level: 2 })).toHaveTextContent(
+      "Related Articles"
+    );
+  });
+
+  it("should maintain consistent structure across different current posts", () => {
+    const slugs = [
+      "resolving-active-conflicts",
+      "operational-security-mutual-aid",
+      "making-decisions-without-hierarchy",
+    ];
+
+    slugs.forEach((slug) => {
+      const { unmount } = render(
+        <RelatedArticles
+          relatedPosts={mockRelatedPosts}
+          currentPostSlug={slug}
+        />
+      );
+
+      // Verify consistent structure
+      expect(screen.getByRole("heading", { level: 2 })).toHaveTextContent(
+        "Related Articles"
+      );
+      // Check that we have some thumbnails (the exact ones depend on the current post)
+      const thumbnails = screen.getAllByTestId(/thumbnail-/);
+      expect(thumbnails.length).toBeGreaterThan(0);
+
+      unmount();
+    });
+  });
+});