diff --git a/README.md b/README.md
index 1451300..471af2b 100644
--- a/README.md
+++ b/README.md
@@ -620,10 +620,13 @@ Your Pull requests are welcome! Let's make this the awesomest resource for Ruby
 
 *People in Ruby World*
 
-  * [Yukihiro "Matz" Matsumoto](https://twitter.com/yukihiro_matz) Creator of Ruby lang
-  * [David Heinemeier Hansson](https://twitter.com/dhh) Creator of Rails framework
-  * [Aaron Patterson](http://tenderlovemaking.com/)
-
+  * [Yukihiro "Matz" Matsumoto](https://twitter.com/yukihiro_matz) - Creator of Ruby lang
+  * [David Heinemeier Hansson](https://twitter.com/dhh) - Creator of Rails framework
+  * [Koichi Sasada](https://github.com/ko1) - Ruby core committer and the developer of YARV
+  * [Aaron Patterson](http://tenderlovemaking.com/) - Committer to Nokogiri, Ruby, and Ruby on Rails
+  * [Avdi Grimm](http://devblog.avdi.org/) - Host of Ruby Tapas webcasts
+  * [Aman Gupta](http://tmm1.net/)- Ruby core committer
+  
 ## Weekly
 
   * [Ruby Weekly](http://rubyweekly.com/) - A free, once–weekly e-mail round-up of Ruby news and articles.