As mentioned earlier, I'm the PPC person over at MarketMotive. This online educational resource for web marketers just came out of beta. They've graciously provided me a fistful of guest passes for a free month, which normally cost $299. If you'd like a free one month pass, send an email to Dian Pena @ RKG. Her email address is her first name, Dian, (note: no "e") at the domain rimmkaufman.com.
A favor: please email back your comments, positive or negative, to help this project improve.