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divesting myself of a number of lower quality sites.
I have a theory that not only has google moved away from doing things on a page level, up to the domain level, but that it also looks at the entire portfolio associated with a webmaster, so I've decided to kill off the site.
wow! - we spend so much time pandering to the Google God, it's a wonder that we have any time at all left to work on creating real quality content.
A simple 404 > header redirect on all pages, redirect 100% to the homepage and put up a "new site" message and nofollow link to the new site home page, to avoid any good or bad history following to the new site. (would using a deep link to the new-site category page be a bad thing?)
Don't want to go off on a tangent but I also have a feeling they look at the whole portfolio, so I too have been divesting myself of a number of lower quality sites.
Coachm, there are "private wordpress" plugins that will make it so you can't see a Wordpress blog unless you're logged in..