List of Web developing programming languages of Top Websites.

Languages Used....
1. Google – Java (Web), –C (indexing).
2. Facebook – PHP.
3. YouTube- Flash, Python, Java.
4. Yahoo– PHP and Java.
5. MicrosoftLive.com–.NET
6. Baidu – PHP
7. Wikipedia – PHP
8. Blogger – Java
9. MSN – .NET
10.Twitter – Ruby on Rails, Scala,Java.