With Google Desktop 5.5 Beta, you can you now embed Google Desktop Gadgets right into your iGoogle homepage. Gadgets on an iGoogle homepage can have more advanced functionality, such as playing music from your computer. You can find them alongside other gadgets in the iGoogle Content Directory. We've also improved some of the other features; such as better looking Quick Search Box, support for multiple copies of a gadget, and improved Outlook search functionality. Read more on the Google Desktop Blog and check out these gadgets you can now add to your iGoogle homepage.
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Source:? Google Blog