If you have been searching for a service to replace iGoogle (it will be shut down on November 1), you might not have to look any farther than Start Me. Start Me is a free start page / home page service that puts all of your most-used bookmarks and most-read RSS feeds on one clean page. Start Me even offers an option to import all of your bookmarks and RSS feeds from iGoogle. Click here for the directions on how to migrate from iGoogle to Start Me.
Applications for Education
I was never a frequent user of iGoogle, but I have met many elementary school and middle school teachers that had their students using it as the launching point for many of the online activities that they had students complete on a daily basis. Start Me could be used in the same manner.