MarkHutch - 5:44 am on Apr 22, 2005 (gmt 0)
Probably due to a big time merchant that was advertising big on sites like yours, has either cut back their advertising, paused it or cut off content in their delivery. If most of your income was coming from a high CPC advertiser, this could mess you up for awhile. However, it could just be something wrong in the Adsense system right now. It's hard to say for sure. I hope it picks back up for you!