It's a site like neopets except you have to over 13 to join so it's a bit more mature.
I joined a while ago, it seems nice....one thing I didn't like about neopets is that there were so many people on at once and alot of people just posted rubbish in the forums. Subeta seems alot friendlier.
http://www.tengaged.com/blog/Daren/445237/mrt