landmark - 1:26 pm on Mar 20, 2006 (gmt 0)

I would definitely be willing to pay for support for specific issues, e.g. why has this page not been indexed? why is the cache of this page out of date? etc etc. In other words, help with specific technical issues where a website has been (apparently) unfairly or irrationally treated.

I don't think that Google should ever offer advice on how to improve a site's rankings. That would completely undermine the notion that Google offers unbiased results.