I saw where someone suggested using Q & A sites to generate backlinks.
Here is a list of free, at least I think they are all still free, Q & A sites:
Side note: Google Answers is defunct.
- able2know A question and answer system built on top of a forum
- AllExperts Ask questions directly to volunteer experts
- answerbag Similar to Yahoo! Answers
- The AnswerBank A simple answer-based community from Britain
- ask me help desk Ask volunteer experts and then tip them with cash if you get an answer you like
- askville Amazon's Yahoo! Answers clone
- fluther Fluther supposedly learns the type of questions you like to answer as you use the site
- grupthink Not questions and answers, but 'open-ended topics' and 'opinions'
- knowbrainers A question an answer site with a MySpace-like social network attached
- Linkedin Focused on business questions
- minti This one is all about parenting
- rediff Q&A A question and answer site from Indian portal Rediff
- Simply Explained Similar to Yahoo! Answers
- trulia Real estate Q & A
- WikiAnswers A Q & A community based around a wiki (Remember, wiki information can be changed by anyone.)
- Yahoo! Answers You know you expected this one to be here