Pay per click networks can serve either advertisers ans publishers.

An advertiser is a company who pays PPC networks to display their ads on various web pages.
A publisher gets paid for allowing PPC networks to post on their site.

As an advertiser, you probably would want to check out
adbrite, 7search, infolinks, adwords and facebook

As a publisher you'll want to check out adsense.

P.S. You probably want to remove your email from your signature. Keeping it there is a great way to get yourself spammed.

If you really want to keep it, perhaps the format me [at] mydomain [dot] com would suit you better.