LifeinAsia - 11:14 pm on Jul 2, 2013 (gmt 0)
1/2) There are many programs besides AdSense that pay for clicks- Chitika, Media.net, and many others. Several companies pay (not usually much) for impressions as well. Most have traffic requirements.
3) You'll have to ask them. Most likely, they want affiliates to actually do some work to earn commissions instead of just slapping up a banner.
4) You'll have to ask them.
5) (On the other hand, that $.05 AdSense click may have cost you the commission on a $250 purchase.) Not all affiliates use AdSense. Not all AdSense publishers are affiliates. Different types of advertising works on different sites or even different pages on the same site. Test to see what works best for you.
6) I used affiliate programs before I had 10K visitors/day. As previously mentioned, some programs may require traffic minimums before accepting you. In those cases, yes.