Has anyone out there heard about WideCircles.com. It seems like a way better service then wasting money on PPC. Apparently they are using refering websites ( forums, blogs, wiki, etc. ) and have a viral word of mouth distributed approach to it. My friend told me he got around 100 visits from single post which cost him $0.40c. I am going to give them a try today . In case you are intrested here is it.
http://widecircles.com?s=imt1