Browse and share web history with Browseback
Today, I came across Browseback, an application that makes it easy to browse and share your web history via some cool visuals. When activated, Browseback appears as an overlay on your screen, much like Dashboard. All of the websites you visited recently (you can specify the time period that Browseback archives, as well as the disk space allotted for it) appear spread out like a deck of cards. Move your cursor over each one to "flip" it to the front, and bring up an unobtrusive dialog box that displays specifics on that particular site (name, url, date of last access, etc.).
Clicking on any page brings up several options: View the page via the web, save or email as a PDF or print. You can also search the database of archives by keyword. It's pretty fun to use (I found flipping through the "cards" to be more fun than I probably should have) and more intuitive than searching your browser's history.
Browseback is currently in beta, and requires Mac OS 10.4 or later (a broadband connection is also recommended). It works with all major browsers, including Safari, Firefox and Internet Explorer. The final release will cost $29.95US (site and worldwide licenses are also available).