... is Ditto. It's open source, it's free, it can be installed to a USB key and it's being maintained regularly. This, along with KeePass Password Safe are probably my two most favorite personal-use applications. The download page has versions for USB key, Blackberry, PocketPC, Linux, MacOS and others.
KPBS has put up this overlay for Google Maps that gives information about the fires in the San Diego area including evacuations and evacuation centers.
While I think they've got a better handle on the visual aspect, Apple isn't the only OS company that can do stacks. This CyberNe's CyberNotes article explains how to use the stack feature in Vista's Explorer.
DownloadSquad is reporting that Google's rolling out IMAP support! The lack of IMAP has been the main thing stopping me from using GMail as my primary mail platform. Lifehacker has a good entry about it here. Don't let the iPhone part of the title put you off -- it's for everyone.
Teleflip.com allows you to send and receive email on your mobile phone as text messages. There's a decent run-down of the service on this page.
From Lifehacker.com comes a link to the Confusing Words website whose purpose is to help you understand the difference between words. Good examples are "lay" and "lie" and "affect" and "effect".
UC Berkeley, that bastion of freedom of expression and weirdness in the 60s (heck, today, even!) is making its lectures available on YouTube.
(Thanks, Steve.)
You probably already know about this but it's such an egregious failure that I feel I have to post something about it. Excel 2007 sometimes has problems with the result of calculations in the range of 65,534.99999999995 to 65,535 and 65,535.99999999995 to 65,536. Excel can display the value as " 100,000 " instead of the proper value. Microsoft's working on a fix but I haven't seen anything so far. This week's Office Watch newsletter has a decent write-up of it. It's an email newsletter but a rundown of the failure is available at this link on their news site.