evansmaster

Which do you prefer? Windows or Mac?

I tend to not use these click per impression advertising services. I just don't find them as effective as the pay per <- snipped -> You usually will need thousands of impressions and won't get much out of it either.
Did a search on Google and found a bunch of results. Just search for pay per impression and you'll find what you need. You can also take a look at Xisto's own list at:

http://forums.xisto.com/forum/109-forum/

If you have good content on your site, stick with Adsense. Some people hate their system, but I love it. It provides good content (usually related to what you have on your site) and this may catch the user's attention.}