Reno - 6:52 pm on May 16, 2010 (gmt 0)
If you have a big website such as us which focusses on the whole world you are getting pushed down by local results.
I do agree that this could be important, but I don't think it matters whether your website is big or small. Even if you have a small site but only sell to the WWW as a whole, without a local bricks & mortar outlet, you may see the same thing happen. Add to this the speed factor (which as far as I can see, G has entirely wrong for most people/pages); and the inclusion of so many blog listings in the SERPs; and "personal history"; and the possibility (discussed here) that some filters may still be off ... it may all add up to the decline so many of us see. For the record, I see no improvement as of this posting.