https://twitter.com/mattcutts/status/251784203597910016Minor weather report: small upcoming Google algo change will reduce low-quality "exact-match" domains in search results.
3 of my best earning sites just tanked... heck... one wasn't even on an EMD. I'm crushed... need a drink
Added: make that 4 sites!
The common thread with these sites:
They were all thin sites with 5-10 pages of content and they were static type sites utilizing pages instead of posts! I used Wordpress on all of them! Domains are all less then a year old!
That's the only common factors I can see, for now!