There is a number of posts on BHW re Google changes in January:
http://www.blackhatworld.com/blackh...527617-there-another-google-update-today.html
http://www.blackhatworld.com/blackhat-seo/white-hat-seo/527692-visitors-decline.html
http://www.blackhatworld.com/blackhat-seo/black-hat-seo/528391-google-new-update.html
In addition Google made some major changes to the image search function, which may have affected traffic if you had popular images on your site:
http://www.blackhatworld.com/blackh...age-search-why-you-may-have-lost-traffic.html
It's all rather nasty.
Thanks for the info. I have read them all and I am aware of these updates. But based on that chart, I am not too sure if it is just that alone.. because it spike and drop every 2-3 days. and I am talking about from #232 to #10, then from #10 to #50, then #50 to #300+ then back to first page etc.
some of my sites went up a lot! mostly the ones with very little off site SEO... crazy