Recently I started sliding away from the Google Search Network a bit to experience slightly with Google AdWords "Placement Ads." I'm a bit confused as I have yet to see the first slightest impressions, let alone a click? Can someone explain it to me please. I've been choosing some high profile sites like MySpace.com and setting a somewhat high CPC to see if I can get a position in the rotation on their page. I'd appreciate any help. Thanks...