C-Command Software's powerful Bayesian email filtering tool SpamSieve has been bumped to version 2.8.3. The update adjusts SpamSieve's tokenizer to make the spam filter even more accurate. In addition, SpamSieve now supports pre-release versions of Apple Mail, MailForge, and the upcoming Microsoft Outlook 2011. A few issues with installing the SpamSieve Apple Mail plug-in have been corrected, too. Full release notes are available. ($30 new, free update, 7.1 MB)
Option-Click AirPort Menu for Network Details
If you hold down the Option key while clicking the AirPort menu in Mac OS X 10.5 Leopard, you'll see not just the names of nearby Wi-Fi networks, but additional details about the selected network. Details include the MAC address of the network, the channel used by the base station, the signal strength (a negative number; the closer to zero it is, the stronger the signal), and the transmit rate in megabits per second showing actual network throughput. If you hover the cursor over the name of a network to which you're not connected, a little yellow pop-up shows the signal strength and type of encryption.