Hi,
Here are some Social Networking Sites with Alexa/Google PR.
Hope, there will some use of you.
1 http://360.yahoo.com (1/7)
2 http://www.orkut.com (2/9)
3 http://spaces.live.com (4/
4 http://www.myspace.com (6/
5 http://www.facebook.com (7/
6 http://www.hi5.com (8/6)
7 http://www.friendster.com (14/7)
8 http://www.fotolog.com (15/7)
9 http://www.livejournal.com (60/8)
10 http://www.xanga.com (99/7)
11 http://www.bebo.com (104/7)
12 http://www.multiply.com (108/6)
13 http://www.linkedin.com (205/7)
15 http://www.gaiaonline.com (300/6)
16 http://www.last.fm (304/7)
17 http://www.piczo.com (351/6)
18 http://my.opera.com/community (495/8)
19 http://www.buzznet.com (593/6)
20 http://www.imvu.com (607/6)
24 http://www.wayn.com (816/5)
25 http://www.slashdot.org (1,094/9)
26 http://www.blackplanet.com (1,136/5)
27 http://www.ning.com (1,286/7)
28 http://www.myyearbook.com (1,403/5)
29 http://www.meetup.com (1,664/8)
30 http://www.classmates.com (1,692/7)
31 http://www.unyk.com (1,865/4)
32 http://www.vox.com (1,897/7)
33 http://www.faceparty.com (2,058/5)
34 http://www.yuwie.com (2,124/5)
35 http://www.yelp.com (2,177/6)
36 http://www.hubpages.com (2,632/6)
37 http://www.secondlife.com (2,771/8)
38 http://www.nexopia.com (3,378/4)
39 http://www.mobango.com (4,085/4)
40 http://www.43things.com (4,204/7)
41 http://www.tribe.net (4,211/6)
42 http://www.fanpop.com (4,839/5)
43 http://www.reunion.com (4,968/5)
44 http://www.greatestjournal.com (5,150/5)
45 http://www.care2.com (5,176/6)
46 http://www.migente.com (5,272/5)
47 http://uk.tribe.net (5,635/1)
48 http://community.adlandpro.com (6,207/1)
49 http://www.broadcaster.com (6,246/5)
50 http://www.ecademy.com (6,710/7)
51 http://www.couchsurfing.com (7,058/6)
52 http://www.downelink.com (7,490/5)
53 http://www.mog.com (10,312/6)
54 http://www.gazzag.com (10,458/1)
55 http://www.ryze.com (13,792/6)
56 http://www.gather.com (14,294/6)
57 http://www.zaadz.com (15,909/5)
58 http://www.librarything.com (17,191/7)
59 http://www.xuqa.com (18,810/5)
60 http://www.directmatches.com (19,811/3)
61 http://www.profileheaven.com (20,430/5)
62 http://www.dogster.com (22,382/6)
63 http://www.eons.com (23,951/7)
64 http://start.aimpages.com (26,586/6)
Thanks
