- Econometric Conferences: A list of upcoming econometric conferences
- Mobissimo: Hands down the best airfare search engine. Think Google but for airfares.
- Spamcop: Offers server blacklist filtered email for $30/year. Automagically deletes 100 spam e-mail messages per day for me.
- Popfile: Free Perl based Bayesian spam filter you can install on your computer. Gets any spam which slip through my Spamcop account.
- Cloudmark Not free but good plug-in for Outlook and Outlook Express for spam filtering. Uses a combination of techniques including bayesian and comunity resorting to determine probability of spam.
- Filezilla: Good free FTP/SFTP/SCP client. Does it pretty much all, save FXP.
- Firefox: Good free browser. Offers nice features in a fairly compact package.
- µTorrent Best Bittorrent client.
- Azureus 2nd Best Bittorrent client, with more features than µ.