One of my favourite modules from Google is a iGoogle, it is personalized homepage just like My Yahoo and MS Live. I have been using since the beginning of this year and have been falling in love with it. The Google Gadgets API is very cool, it allows users to create their own gadgets.
Some of the gadgets that attached for mine, very recommend.
“Quote of the day”
“Places to See Before You Die”
For me, iGoogle helps me organize web things, it is very portable and does add lots of little tips to my everyday life.