1.Intract with other people in internet by Chating,Social netwoking,Blogging etc,.
http://www.meebo.com/
http://www.orkut.com/
http://www.blogger.com/
http://www.twitter.com/
2.Store your files online
http://skydrive.live.com/
3.Send free SMSs
http://www.way2sms.com/
http://www.youmint.com/network-sasivarna...
4.Download Applications
http://www.sofpedia.com/
http://www.download.com/
5.Play online games
http://www.miniclip.com/
http://www.gamesheep.com/
http://www.zapak.com/
6.Grow your Knowledge
http://www.wikipedia.com/
http://www.encarta.com/
7.Read Current News
http://www.samachar.com/
http://news.yahoo.com/
8.Search for jobs
http://www.shine.com/
http://www.monster.com/
http://www.naukri.com/
You can try http://www.in.com/ where you can read, play online games, listen to music, Watch Videos, Store files online, Shop, Download and get shortest E-mail IDs...