Micro Blogging

Articles
ezinearticles.com
goarticles.com
articlesnatch.com
ezinemark.com
sooperarticles.com
brighthub.com
articlerich.com
articlecity.com
articlesfactory.com
thefreelibrary.com
knoji.com/articles/
artipot.com
expertscolumn.com
articlebase.com
hubpages.com


Classifieds

http://ebayclassifieds.com
http://daype.com/
http://www.kugli.com
http://www.adlandpro.com
http://www.adpost.com
http://backpage.com/
http://hoobly.com/
http://recycler.com/
http://usfreeads.com/
http://ablewise.com/
http://sell.com
http://pennysaverusa.com
http://oodle.com
http://usfreeads.com
http://epage.com/
http://classifiedads.com
http://usnetads.com

Microblogging

http://www.friendfeed.com/
http://www.plurk.com/
http://meemi.com/
http://Heello.com
http://Soup.io