QUOTE (durrenmatt @ Jan 6 2010, 06:18 AM)

i agree to a certain extent too...but i think that if you're doing seo yahoo answers is too time-consuming and other methods take less time and are more effective...
You don't necessarily use Yahoo Answers for the SEO benefit as there's little to none as the links are no-followed.
What I have found is that answers.yahoo.com gets very good rankings in the SE's for quite generic questions that are searched very often and this will translate in constant visitors/customers to the site you're 'advertising' as the source link or whatever method you're using to put your site's link in the answer.
Eg.: Let's say you have an informational website about loosing weight.
Now you go to the # Health ># Diet & Fitness category on Yahoo Answers. You'll find there all kinds of questions about this subject. Try to see which questions are the most generic ones (which phrases are most likely to be searched by most people). The most searched the phrase is the most traffic it will get from SE's.
And try to answer the question, but don't be cheap on words. Give a good answer that could really help the person in cause and as well not make your answer look spammy and at the end you could say something like: 'For more articles on this matter, you can check [your website]' or 'I've found really useful articles on this website [your website] regarding [subject in cause] if you want to learn more about it' etc. (the possibilities are endless)