I use iGoogle 20 times a day.
I have all my bookmarks, a currency quote for the 3 currencies I use, headlines, stock market quotes & 3 different headline services.
I can't understand why they want to close it. It's super useful. Really disappointed if it's not replaced with something of equal value. Especially bookmarks - on iGoogle they are simple & orderly & you can have up to 100 showing.
On the other hand Google Bookmarks as a stand alone is the opposite. I use Google Chrome 96% of the time.