diff --git a/_includes/ad-main.html b/_includes/ad-main.html
index 61f25ef..7f3e09d 100644
--- a/_includes/ad-main.html
+++ b/_includes/ad-main.html
@@ -1,17 +1,10 @@
 <!-- Browserstack -->
 <div class="ad">
-  <a href="https://www.browserstack.com/">
-    <img src="/img/vendor/browserstack.png" alt="We're testing Summernote via BrowserStack."/>
-    <p>We're using BrowserStack for testing!</p>
+  <a href="https://www.filestack.com/">
+    <img
+      src="/img/vendor/filestack.png"
+      alt="File Uploader & File Upload API - Filestack"
+      style="width: 100%; height: auto"
+    />
   </a>
 </div>
-<!-- Google Ad -->
-<script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
-<!-- ad-main -->
-<ins class="adsbygoogle"
-     style="display:inline-block;width:320px;height:100px"
-     data-ad-client="ca-pub-4799203991210529"
-     data-ad-slot="5651631492"></ins>
-<script>
-(adsbygoogle = window.adsbygoogle || []).push({});
-</script>
diff --git a/img/vendor/filestack.png b/img/vendor/filestack.png
new file mode 100644
index 0000000..a08deec
Binary files /dev/null and b/img/vendor/filestack.png differ
diff --git a/index.html b/index.html
index 317d79c..72a2270 100644
--- a/index.html
+++ b/index.html
@@ -109,6 +109,22 @@ <h3>Donate</h3>
             </div>
           </div>
         </div>
+        <h3>Sponsor</h3>
+        <div class="row">
+          <div class="col-sm-12 summary-section">
+            <div>
+              <a
+                href="https://www.filestack.com/signup-start/?utm_source=Summernote&utm_medium=Leads%20Acquisition&utm_content=SummernoteROS2024&utm_campaign=SummernoteROS2024"
+              >
+                <img
+                  src="/img/vendor/filestack.png"
+                  alt="File Uploader & File Upload API - Filestack"
+                  style="width: 100%; height: auto"
+                />
+              </a>
+            </div>
+          </div>
+        </div>
       </div>
       <div class="col-sm-7 twitter-list">
         <h3 class="twitter-title">Our Amazing Contributors:</h3>