Here is search logs of 650,000 AOL users. It's very interesting to view search history of particular person and analyze his personality. Let's do it together! Read more about AOL search database scandal or view research papers on web searching.
blade.nagaokaut.ac.jp
Site opens with pretty graphic, and otherwise looks thin, but has huge archives of many Ruby mail groups: ruby-list, ruby-dev, ruby-ext, ruby-math, ruby-talk, fj.comp.lang.ruby, comp.lang.ruby, News, News2, Mailing Lists; linux-users.