For text only files

After listening to many complaints by people visiting the site, a (amateur :P) feature for uploading text only files has been incorporated. The text then uploaded will be viewable in form of online text. If any problem is faced, post it up :)

I got a mail today from a person named Lavanya, suggesting that I keep the posts only for people who are logged in. It reminded me of a feature that I had thought of but was at back of my mind for a while. That is introducting closed groups and communities where files uploaded will be viewable only by people of those groups.
Suggestions to this idea invited ...