You know the hi5.com and the like invite scripts.. Well.. take a look at this HERE . It imports address book of HOTMAIL and emails them with whatever content and whatever subject you want it to.. like say for example : " Your friend has invited you to _____ site " I did not code it.. a close frnd did.. so wht d heck.. Sell it for 20 $ and you get $ 10 as affiliate. Else, purchase it for 50 $ with resell confirmation