Random facebook thoughts:
My facebook ROI was at 300%+ last month, now it's down to about 150% and should be getting lower. Two of my good campaigns got nerfed (bidz and instant action). Making more $ though since facebook maxed my cap.
Right now I'm promoting about 5 different types of offers, none of which are zip/emails though I'll probably give those a try.
Dating's decent. It's all about finding the right picture with cleavage and getting it approved.
If you don't know what to promote, make fake account and use proxies.
It's going to get harder to make $ on facebook.