I've been making my money off AdSense since before it was really released. But recently I had a pretty major database crash on my largest site. So while I was fixing it I've actually been improving the site, for instance I was running SMF for my forums and have since changed that to IP.Board.
The site is looking better than ever but my revenue has gone down and my traffic has taken a hit. Funny thing is that the CPM is down on all my content not just the pages that were effected by the crash.
Can it at all have to do with Googles Indexing of those changed pages... could that at all effect the ads on other pages?