It appears that Yahoo has joined Gigablast and Clusty and is now providing direct links to "archived" versions of pages via The Internet Archive's Wayback Machine. You'll find a direct link to check to see if older versions of the page are available in the box at the top of every page that Yahoo caches. Look for the text link that reads, "check for previous versions at the Internet Archive." Click the link and you'll transported to The Wayback Machine to see if older copies for the page/URL you're viewing have been archived.
Meet Your Favorite Search Engine Watch Contributors
Many of SEW's leading expert contributors will be at ClickZ Live, the new online and digital marketing event kicking off in New York (March 31-April 3). Hear from the likes of: Thom Craver, Josh Braaten, Lisa Barone, Simon Heseltine, Josh McCoy, Lisa Raehsler, Greg Jarboe, Dan Cristo, Joseph Kerschbaum, John Gagnon, Eric Enge and more!