Perfect example of this is trying to google for mailing list posts.

All sorts of maximum ad-cram crappy sites (including ones that try to pretend to be a forum, with mailing list posts as "users") that maximize SEO gaming techniques dominate the results for 20+ pages.

http://marc.info, which is the best archive avalible atm, plain, simple no bullshit layout and is linked everywhere anytime somebody wants to reference a mailing list archive, nowhere to be found.