Best Social Networking Site list :

[seoinheritx1]

digg.com
reddit.com
Artspoint.net
bookmarks.oneindia.in
stumbleupon.com
slashdot.org
flickr.com
twitter.com
technorati.com
del.icio.us
diigo.com
bookmarks.yahoo.com
google.com/notebook
box.net
blogcatalog.com
fark.com
43things.com
simile.mit.edu
esnips.com
9rules.com
linuxquestions.org
myspace.com
folkd.com

[webcreations]

Best Social Networking Site list:
1 Facebook 2 Twitter 3 LinkedIn 4 MySpace 5 Google Plus+ 6 DeviantArt 7 LiveJournal 8 Tagged
9 Orkut 10 Pinterest 11 CafeMom 12 Ning 13 Meetup 14 myLife 15 Badoo

[ahsanabrar]

search on google you can find lots of lists
try directory maximizer it have huge list

[adamscot]

recently i perform search on google and found the huge list of social bookmarking sites. you try it and say how it is..?
socialmoz dot blogspot dot com

[careyengland]

Facebook, Google Plus, LinkedIn and Twitter are best social networking websites.

[Engagedots]

Good list.
Facebook
MySpace
Linkedin
Twitter
Google Plus.

[kingston250]

but if you search in Google you can find the mostly useless social bookmarking site.

[webspekers]

That some sites are frequently i used, Nice collection providing by you. Thanks.

[adsystem]

Yes Nice social sites shared above.Social Sites are helps in SEO for getting the organic traffic.These sites are also helps in generating exposure and visibility of a website in search engines.

[JohnWatson]

I have just started seo work for my new client website. I have already started social book marking and directory submission for this website but getting bored by doing social book marking in these old websites. I want some new website in which I can bookmark my website. :(

[abhishekabhi]

HI

Google blog , Facebook and twitter is best social networking site.

[SamDenial]

Good list of Social bookmarking websites. Digg, Delicious and StumbleUpon are really good to get links and to rank your keywords at the top of the major search engines.

[theshail]

Facebook, Twitter, Linkedin and Google+ are most popular social networking sites.

[mikeslough5]

Thanks for the posting its really good sites for book marking.

[87nitingarg]

thanks for sharing news.

[JohnWatson]

HI

Google blog , Facebook and twitter is best social networking site.

Hey thanks for suggestion! I know these are very much important sites. I'm using it also. :)

[kaminiprajapati]

Facebook and Twitter is the Best Social Networking Site foreover. Then Quora, Linked In, Folked, Myspace, Digg, Dilicious or reddit.