diff --git a/lib/controllers/block.js b/lib/controllers/block.js
index 13fd09e..c3572a6 100644
--- a/lib/controllers/block.js
+++ b/lib/controllers/block.js
@@ -54,7 +54,7 @@ export async function block(request, response) {
     await collection.insertOne({
       userId,
       url,
-      createdAt: new Date(),
+      createdAt: new Date().toISOString(),
     });
   }
 
diff --git a/lib/controllers/follow.js b/lib/controllers/follow.js
index 7493e1f..ef79e7d 100644
--- a/lib/controllers/follow.js
+++ b/lib/controllers/follow.js
@@ -14,6 +14,7 @@ import {
   getFeedsForChannel,
 } from "../storage/feeds.js";
 import { getUserId } from "../utils/auth.js";
+import { notifyBlogroll } from "../utils/blogroll-notify.js";
 import { createFeedResponse } from "../utils/jf2.js";
 import { validateChannel, validateUrl } from "../utils/validation.js";
 import {
@@ -78,6 +79,17 @@ export async function follow(request, response) {
     console.error(`[Microsub] Error fetching new feed ${url}:`, error.message);
   });
 
+  // Notify blogroll plugin (fire-and-forget)
+  notifyBlogroll(application, "follow", {
+    url,
+    title: feed.title,
+    channelName: channelDocument.name,
+    feedId: feed._id.toString(),
+    channelId: channelDocument._id.toString(),
+  }).catch((error) => {
+    console.error(`[Microsub] Blogroll notify error:`, error.message);
+  });
+
   response.status(201).json(createFeedResponse(feed));
 }
 
@@ -122,6 +134,11 @@ export async function unfollow(request, response) {
     throw new IndiekitError("Feed not found", { status: 404 });
   }
 
+  // Notify blogroll plugin (fire-and-forget)
+  notifyBlogroll(application, "unfollow", { url }).catch((error) => {
+    console.error(`[Microsub] Blogroll notify error:`, error.message);
+  });
+
   response.json({ result: "ok" });
 }
 
diff --git a/lib/controllers/mute.js b/lib/controllers/mute.js
index ea9efd4..1d15f96 100644
--- a/lib/controllers/mute.js
+++ b/lib/controllers/mute.js
@@ -85,7 +85,7 @@ export async function mute(request, response) {
       userId,
       channelId,
       url,
-      createdAt: new Date(),
+      createdAt: new Date().toISOString(),
     });
   }
 
diff --git a/lib/storage/channels.js b/lib/storage/channels.js
index a40173a..d972503 100644
--- a/lib/storage/channels.js
+++ b/lib/storage/channels.js
@@ -74,8 +74,8 @@ export async function createChannel(application, { name, userId }) {
       excludeTypes: [],
       excludeRegex: undefined,
     },
-    createdAt: new Date(),
-    updatedAt: new Date(),
+    createdAt: new Date().toISOString(),
+    updatedAt: new Date().toISOString(),
   };
 
   await collection.insertOne(channel);
@@ -185,7 +185,7 @@ export async function updateChannel(application, uid, updates, userId) {
     {
       $set: {
         ...updates,
-        updatedAt: new Date(),
+        updatedAt: new Date().toISOString(),
       },
     },
     { returnDocument: "after" },
@@ -242,7 +242,7 @@ export async function reorderChannels(application, channelUids, userId) {
   const operations = channelUids.map((uid, index) => ({
     updateOne: {
       filter: userId ? { uid, userId } : { uid },
-      update: { $set: { order: index, updatedAt: new Date() } },
+      update: { $set: { order: index, updatedAt: new Date().toISOString() } },
     },
   }));
 
@@ -298,8 +298,8 @@ export async function ensureNotificationsChannel(application, userId) {
       excludeTypes: [],
       excludeRegex: undefined,
     },
-    createdAt: new Date(),
-    updatedAt: new Date(),
+    createdAt: new Date().toISOString(),
+    updatedAt: new Date().toISOString(),
   };
 
   await collection.insertOne(channel);
diff --git a/lib/storage/feeds.js b/lib/storage/feeds.js
index 8472494..b65dfdc 100644
--- a/lib/storage/feeds.js
+++ b/lib/storage/feeds.js
@@ -45,11 +45,11 @@ export async function createFeed(
     photo: photo || undefined,
     tier: 1, // Start at tier 1 (2 minutes)
     unmodified: 0,
-    nextFetchAt: new Date(), // Fetch immediately
+    nextFetchAt: new Date(), // Fetch immediately (kept as Date for query compatibility)
     lastFetchedAt: undefined,
     websub: undefined, // Will be populated if hub is discovered
-    createdAt: new Date(),
-    updatedAt: new Date(),
+    createdAt: new Date().toISOString(),
+    updatedAt: new Date().toISOString(),
   };
 
   await collection.insertOne(feed);
@@ -114,7 +114,7 @@ export async function updateFeed(application, id, updates) {
     {
       $set: {
         ...updates,
-        updatedAt: new Date(),
+        updatedAt: new Date().toISOString(),
       },
     },
     { returnDocument: "after" },
@@ -227,15 +227,15 @@ export async function updateFeedAfterFetch(
     updateData = {
       tier,
       unmodified,
-      nextFetchAt,
-      lastFetchedAt: new Date(),
-      updatedAt: new Date(),
+      nextFetchAt, // Kept as Date for query compatibility
+      lastFetchedAt: new Date().toISOString(),
+      updatedAt: new Date().toISOString(),
     };
   } else {
     updateData = {
       ...extra,
-      lastFetchedAt: new Date(),
-      updatedAt: new Date(),
+      lastFetchedAt: new Date().toISOString(),
+      updatedAt: new Date().toISOString(),
     };
   }
 
@@ -280,7 +280,7 @@ export async function updateFeedWebsub(application, id, websub) {
     {
       $set: {
         websub: websubData,
-        updatedAt: new Date(),
+        updatedAt: new Date().toISOString(),
       },
     },
     { returnDocument: "after" },
@@ -314,12 +314,12 @@ export async function updateFeedStatus(application, id, status) {
   const objectId = typeof id === "string" ? new ObjectId(id) : id;
 
   const updateFields = {
-    updatedAt: new Date(),
+    updatedAt: new Date().toISOString(),
   };
 
   if (status.success) {
     updateFields.status = "active";
-    updateFields.lastSuccessAt = new Date();
+    updateFields.lastSuccessAt = new Date().toISOString();
     updateFields.consecutiveErrors = 0;
     updateFields.lastError = undefined;
     updateFields.lastErrorAt = undefined;
@@ -330,7 +330,7 @@ export async function updateFeedStatus(application, id, status) {
   } else {
     updateFields.status = "error";
     updateFields.lastError = status.error;
-    updateFields.lastErrorAt = new Date();
+    updateFields.lastErrorAt = new Date().toISOString();
   }
 
   // Use $set for most fields, $inc for consecutiveErrors on failure
diff --git a/lib/storage/items.js b/lib/storage/items.js
index 6896807..5f46773 100644
--- a/lib/storage/items.js
+++ b/lib/storage/items.js
@@ -49,8 +49,8 @@ export async function addItem(application, { channelId, feedId, uid, item }) {
     name: item.name || undefined,
     content: item.content || undefined,
     summary: item.summary || undefined,
-    published: item.published ? new Date(item.published) : new Date(),
-    updated: item.updated ? new Date(item.updated) : undefined,
+    published: item.published ? new Date(item.published) : new Date(), // Keep as Date for query compatibility
+    updated: item.updated ? new Date(item.updated) : undefined, // Keep as Date for query compatibility
     author: item.author || undefined,
     category: item.category || [],
     photo: item.photo || [],
@@ -62,7 +62,7 @@ export async function addItem(application, { channelId, feedId, uid, item }) {
     inReplyTo: item["in-reply-to"] || item.inReplyTo || [],
     source: item._source || undefined,
     readBy: [], // Array of user IDs who have read this item
-    createdAt: new Date(),
+    createdAt: new Date().toISOString(),
   };
 
   await collection.insertOne(document);
@@ -182,7 +182,7 @@ function transformToJf2(item, userId) {
     type: item.type,
     uid: item.uid,
     url: item.url,
-    published: item.published?.toISOString(),
+    published: item.published?.toISOString(), // Convert Date to ISO string
     _id: item._id.toString(),
     _is_read: userId ? item.readBy?.includes(userId) : false,
   };
@@ -191,7 +191,7 @@ function transformToJf2(item, userId) {
   if (item.name) jf2.name = item.name;
   if (item.content) jf2.content = item.content;
   if (item.summary) jf2.summary = item.summary;
-  if (item.updated) jf2.updated = item.updated.toISOString();
+  if (item.updated) jf2.updated = item.updated.toISOString(); // Convert Date to ISO string
   if (item.author) jf2.author = normalizeAuthor(item.author);
   if (item.category?.length > 0) jf2.category = item.category;
 
diff --git a/lib/utils/blogroll-notify.js b/lib/utils/blogroll-notify.js
new file mode 100644
index 0000000..67d3d6d
--- /dev/null
+++ b/lib/utils/blogroll-notify.js
@@ -0,0 +1,119 @@
+/**
+ * Notify blogroll plugin of Microsub follow/unfollow events
+ * @module utils/blogroll-notify
+ */
+
+/**
+ * Notify blogroll of a feed subscription change
+ * Fire-and-forget — errors are logged but don't block the response
+ * @param {object} application - Application instance
+ * @param {string} action - "follow" or "unfollow"
+ * @param {object} data - Feed data
+ * @param {string} data.url - Feed URL
+ * @param {string} [data.title] - Feed title
+ * @param {string} [data.channelName] - Channel name
+ * @param {string} [data.feedId] - Microsub feed ID
+ * @param {string} [data.channelId] - Microsub channel ID
+ */
+export async function notifyBlogroll(application, action, data) {
+  // Check if blogroll plugin is installed
+  if (typeof application.getBlogrollDb !== "function") {
+    return;
+  }
+
+  const db = application.getBlogrollDb();
+  if (!db) {
+    return;
+  }
+
+  const collection = db.collection("blogrollBlogs");
+  const now = new Date();
+
+  if (action === "follow") {
+    // Skip if this feed was explicitly deleted by the user
+    const deleted = await collection.findOne({
+      feedUrl: data.url,
+      status: "deleted",
+    });
+    if (deleted) {
+      console.log(
+        `[Microsub→Blogroll] Skipping follow for ${data.url} — previously deleted by user`,
+      );
+      return;
+    }
+
+    // Upsert the blog entry
+    await collection.updateOne(
+      { feedUrl: data.url },
+      {
+        $set: {
+          title: data.title || extractDomain(data.url),
+          siteUrl: extractSiteUrl(data.url),
+          feedType: "rss",
+          category: data.channelName || "Microsub",
+          source: "microsub",
+          microsubFeedId: data.feedId || null,
+          microsubChannelId: data.channelId || null,
+          microsubChannelName: data.channelName || null,
+          skipItemFetch: true,
+          status: "active",
+          updatedAt: now,
+        },
+        $setOnInsert: {
+          description: null,
+          tags: [],
+          photo: null,
+          author: null,
+          lastFetchAt: null,
+          lastError: null,
+          itemCount: 0,
+          pinned: false,
+          hidden: false,
+          notes: null,
+          createdAt: now,
+        },
+      },
+      { upsert: true },
+    );
+
+    console.log(`[Microsub→Blogroll] Added/updated feed ${data.url}`);
+  } else if (action === "unfollow") {
+    // Soft-delete the blog entry if it came from microsub
+    const result = await collection.updateOne(
+      {
+        feedUrl: data.url,
+        source: "microsub",
+        status: { $ne: "deleted" },
+      },
+      {
+        $set: {
+          status: "deleted",
+          hidden: true,
+          deletedAt: now,
+          updatedAt: now,
+        },
+      },
+    );
+
+    if (result.modifiedCount > 0) {
+      console.log(`[Microsub→Blogroll] Soft-deleted feed ${data.url}`);
+    }
+  }
+}
+
+function extractDomain(url) {
+  try {
+    return new URL(url).hostname.replace(/^www\./, "");
+  } catch {
+    return url;
+  }
+}
+
+function extractSiteUrl(feedUrl) {
+  try {
+    const parsed = new URL(feedUrl);
+    return `${parsed.protocol}//${parsed.host}`;
+  } catch {
+    return "";
+  }
+}
diff --git a/lib/webmention/processor.js b/lib/webmention/processor.js
index ae74487..1cca234 100644
--- a/lib/webmention/processor.js
+++ b/lib/webmention/processor.js
@@ -61,10 +61,10 @@ export async function processWebmention(application, source, target, userId) {
     url: verification.url,
     published: verification.published
       ? new Date(verification.published)
-      : new Date(),
+      : new Date(), // Keep as Date for query compatibility
     verified: true,
     readBy: [],
-    updatedAt: new Date(),
+    updatedAt: new Date().toISOString(),
   };
 
   if (existing) {
@@ -73,7 +73,7 @@ export async function processWebmention(application, source, target, userId) {
     notification._id = existing._id;
   } else {
     // Insert new notification
-    notification.createdAt = new Date();
+    notification.createdAt = new Date().toISOString();
     await collection.insertOne(notification);
   }
 
@@ -190,7 +190,7 @@ function transformNotification(notification, userId) {
     type: "entry",
     uid: notification._id?.toString(),
     url: notification.url || notification.source,
-    published: notification.published?.toISOString(),
+    published: notification.published?.toISOString(), // Convert Date to ISO string
     author: notification.author,
     content: notification.content,
     _source: notification.source,
diff --git a/package.json b/package.json
index 0c36869..72fd383 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@rmdes/indiekit-endpoint-microsub",
-  "version": "1.0.26",
+  "version": "1.0.28",
   "description": "Microsub endpoint for Indiekit. Enables subscribing to feeds and reading content using the Microsub protocol.",
   "keywords": [
     "indiekit",