eZeB - 7:08 pm on Aug 8, 2007 (gmt 0)

I have the same experience -- I believe they are adjusting datacenters and pulling information from a different configuration of datacenters, hence an incomplete mix, and/or tweaking parts of the algo.

If your site is a borderline case for one or more factors, or the certain configuration of factors that is in the now missing datacenter was outweighing other negative factors, then down u go!

I have tested and tweaked and researched pretty extensively and can't see what is going on for the life of me.

After a certain point, further research and tweaking doesn't justify the time so I work on other sites, but keep getting quality links and hopefully one day it will stay on the front page.