Yahoo Answers type site list?

Hi Guys,

where can i find a Yahoo Answers type site list?

i am considering buying a couple of yahoo answers type service from BST but want to do some ground work link what types of links are posted there, what is the avg pr / age of site, quality of sites... etc etc

Thanks

By using google search: http://freenuts.com/top-10-questions-and-answers-websites/