I am currently in the process of building a site similar to yahoo answers for math and science homework questions at www.thetutordirect.com I am curious, if anyone's "expert opinion" how many content-original pages do I need before I go back and 'optimize them.' How many content pages minimum do I need to start. I can always add more whenever someone sends in a question, just curious where is a good place to start, because if I have zero questions or whatever, then it looks like I do not know what I am doing. Thank you very much in advance for your opinions on this.
Technically all you need is one page. Google doesn't have a minimum # of pages. I've actually seen a couple of one-page websites that claim to be making nice money from AdSense.
Thats true that threr is no page limit for a site to be accepted by Google for adsense program. I was selected with 7 pages on my website and that was built on geocities at that time.