Lorel - 7:38 pm on Mar 24, 2006 (gmt 0)

Liane,

Despite what Google or any other search engine thinks, I even link to sites which have been deemed "bad neighbourhoods".

This could be part of your problem. Google has been warning for a long time to not link to bad neighborhoods.

I recently read a discussion by g1smd on WW where he tested linking to a bad neighborhood from a frequently cached page--and noticed Google quit updating the cache the very next day. He removed the link 2 weeks later. He did this 3 times with the same result.