tedster - 2:49 pm on Nov 18, 2009 (gmt 0)

The best approach is to find some reason why your pages may have been dropped - and change or fix that first, before you submit a reconsideration request. I appreciate that this may be difficult in some cases, especially right now. It recently seems like there may be some data trouble at Google, and your pages might just reappear on their own. Several members here have reported that kind of thing.

If you do request a reconsideration, I recommend watching this short video from Google first:

Tips on requesting reconsideration [youtube.com]