You don't need to support alias domains.  They redirect to `*.stackexchange.com` domains, anyway.

This will match all current Stack Exchange sites.  It uses `@match` for smarter domain and path wildcards.  [`@match` also works better for Chrome][1]:

    // @match       http://*.askubuntu.com/*
    // @match       http://*.mathoverflow.net/*
    // @match       http://*.onstartups.com/*
    // @match       http://*.serverfault.com/*
    // @match       http://*.stackapps.com/*
    // @match       http://*.stackexchange.com/*
    // @match       http://*.stackoverflow.com/*
    // @match       http://*.superuser.com/*


  [1]: http://stackoverflow.com/a/16413467/331508