Whats up, I am trying to go for my first white hat promotion of a site I had been building for a while. It is an adult type of social network, which is completely free to join and use. It has various CPA ads which are currently bringing in maybe $90-120 a month. I was planning on using the Adbrite adult advertising network but have not made any commitments. I noticed one of my major competitors (xpeeps) uses Adbrite and found another competitor (s3x) advertising with the Adbrite network which listed their ad on xpeeps. I monitored the growth of s3x during it's week long campaign and noticed it had grown by about 500 members a day. I would like to acheive those or better results by using the Adbrite network and designing a great banner. Anyhow for a social networking site that doesn't cost anything to join, which would get me more bang for my buck...PPM or PPC? Any advice would be appreciated.