add link to Are.na

Why not? I'm happy to share

contact.html

@@ -12,7 +12,7 @@
 <h3>Elsewhere
 </h3>
 <p>If you are planning to 'stalk' me, I'll make it easier for you. 
-As of the 23rd of April, 2021 A.D.,
+As of the 14th of May, 2021 A.D.,
   </p>
   <p>I'm sometimes active on the following:
     <ul>
@@ -28,7 +28,10 @@ As of the 23rd of April, 2021 A.D.,
 	  <li><a href="https://letterboxd.com/Bingxiong/films/diary/">
     Letterboxd, where I track movies that I have watched</a>
   </li>
-  
+
+  <li><a href="https://www.are.na/tony-chen">Arena
+</a>
+</li>
 
       
       
@@ -38,6 +41,11 @@ As of the 23rd of April, 2021 A.D.,
   <p><b>I'm rarely active, on the following:</b>
   <ul>
   
+  <li><a href="https://www.linkedin.com/in/phengheong/">LinkedIn
+    </a>
+    </li>
+
+
   <li><a href="https://www.flickr.com/people/163620174@N04/">
     Flickr, where I keep some photos hanging around
     </a>
@@ -69,10 +77,6 @@ As of the 23rd of April, 2021 A.D.,
     </a>
     </li>
       
-  <li><a href="https://www.linkedin.com/in/phengheong/">LinkedIn
-    </a>
-    </li>
-
 
   <li>
   <a href="https://www.goodreads.com/user/show/41823557-pheng-heong-tan">