dickbaker - 11:15 pm on Feb 27, 2010 (gmt 0)
Yep. Tedster is right.
A couple of years ago I made changes to my entire site using a new template. The template had "noindex, nofollow" tags on it, though, and I forgot to change them. A month or so later, when I saw my site disappearing, I discovered the problem. It bounced back.