@amleaner, I noticed the same May6 and May07 we ok but May8 and May9 went even worse. Since 4/15 my traffic has slowly going down. I update my site all the time so it is up to date. My only explanation is that it may has something to do with the malicious automated traffic many websites get, such as from .ru sites etc. I dont think any competitor has hired someone to do bad linking. I think the problem is much more global. I see that for all my sites, including small ones that I know no one would bother with to do bad linking for.