How to have Tamil online groups?

Yes. You can have online groups/forums in Tamil itself - for instance, see http://groups.google.com/group/illam. This is a non-technical group. If you can have a look at http://groups.google.com/group/illam, it will tell you how easy it is to type in Unicode and share your thoughts/views in Tamil amongst viewers worldwide. All messages will be in the universally visible Unicode Tamil only. You can view the group messages at any time without joining the group. To post comments, you have to join the group.

Apart from this, to get answer to any question on Azhagi, you can join Azhagi's primary Yahoo online forum at http://groups.yahoo.com/group/azhagi. It will immensely help, as users' various questions on Unicode and any other aspect of Azhagi are answered therein. Additionally, you may also join http://groups.google.com/group/azhagi if you are used to google groups and gmail.

While joining any of the groups above, you can always opt for 'No Email' option and see all the messages posted, over the net itself.