I have named it as Online Tamil Keyboard. URL for Online Tamil Keyboard : http://developer.thamizha.com/tamilkey.html
As of now I have given option for two keyboard layouts
1. Anjal layout - This is most popular keyboard among tamils who havent learned Tamil typewriter or Tamilnet99 keyboards.
2. Tamilnet99 keyboard layout - This is the keyboard recognised by Tamil Nadu Government. Using this keyboard we can type tamil very fast. I personally use this.
I plan to add Bamini keyboard (which is popular among Srilankan Tamils) and TamilTypewriter layout (which is popular among those who have learned Tamil Typewriter) in future.
And this only works in Firefox browser as of now. I am trying to figure out a way to make it work in Internet Explorer (I would greatly appreciate if any one helped me on this ).
I hope this Online Tamil Keyboard page would be helpful in some way to Tamil users :)