amol_v_naik - 6:38 pm on Jan 2, 2006 (gmt 0)

"if you are ranking well in Google & MSN,
especially if your site has been around for a while, but no where to be found in yahoo, chances are you are banned."

I totally disagree, this might not be the case. My site is ranked well in Yahoo and MSN, but has poor rankings in Google. I think reworking on yor site for content relevency, keyword insertion, tags, inbound links will help. This three SE's have different algo's, as we all know, and the factor considered important by Yahoo might be laking on your site. Find it, work on it and wait for some-time.