Two Revenue Earning, No Maintenance, Affiliate Sites with SERPs
I created these sites several months ago with original content and intended to promote them as affiliate sites, I have since forgotten about them and moved on to other projects.
Both have made sales under the AzoogleAds program, but I haven't been able to login there to check stats, both have made at least some sales in the past though. Adsense earnings have been nothing massive.
You will get best results with PPC traffic of course, but as you can see they do get search engine traffic and this will be great for your quality score.
Ringtones conversions will get you about US$14 PER CONVERSION. Free Business card offers about US$22 PER CONVERSION.
Basically, they are two good looking affiliate sites with established SERPs and traffic ready and geared to go.