Here is a simple guide to adding an RSS Feed on your personalized iGoogle Homepage.
For this example we are going to use the “Decoding the Web” RSS Feed.
Click on “Add stuff”. (screenshot)
Click on “Add by URL”. (screenshot)
Return to the iGoogle Homepage, you should now be able to see the new Gadget.
Click on the top-right small arrow, and then on “Edit settings”.
Select how many items you want it to display, and “Save”. (screenshot)
That’s it, enjoy!