1-http://www.plurk.com
2-http://www.twitter.com
3-http://www.fcebook.com
4-http://www.stumbleupon.com
5-http://www.delicious.com
6-http://www.weebly.com
7-http://www.friendfeed.com
8-http://www.yahoo.com
9-http://www.quora.com
10-http://www.tumblr.com
11-http;//www.reddit.com
12-http://www.diigo.com
13-http://www.digg.com
14-http://www.linkdin.com
15-http://www.pinterest.com
16-http://www.blinklist.com
17-http://www.storeboard.com
18-http://www.newsvine.com
19-http://www.bigsonomy.com
20-http://www.scoopit.com
21-http://www.bing.com
22-http://www.plusgoogle.com
23-http://www.slash.com
24-http://www.google.com
25-http://www.folkd.com
26-http://www.jumptags
27-http://www.maxpok.com
28-http://www.amables.info
29-http://www.aol.com
30-http://www.newsmeback.com
2-http://www.twitter.com
3-http://www.fcebook.com
4-http://www.stumbleupon.com
5-http://www.delicious.com
6-http://www.weebly.com
7-http://www.friendfeed.com
8-http://www.yahoo.com
9-http://www.quora.com
10-http://www.tumblr.com
11-http;//www.reddit.com
12-http://www.diigo.com
13-http://www.digg.com
14-http://www.linkdin.com
15-http://www.pinterest.com
16-http://www.blinklist.com
17-http://www.storeboard.com
18-http://www.newsvine.com
19-http://www.bigsonomy.com
20-http://www.scoopit.com
21-http://www.bing.com
22-http://www.plusgoogle.com
23-http://www.slash.com
24-http://www.google.com
25-http://www.folkd.com
26-http://www.jumptags
27-http://www.maxpok.com
28-http://www.amables.info
29-http://www.aol.com
30-http://www.newsmeback.com