Does iGoogle count? I love it, because I can aggregate information I want, along with functions I want to perform. I have a ton of newsfeeds, dictionaries/translators, local movies, etc. etc. plugged in. I even wrote a couple of my own widgets, so I could perform certain online tasks quicker.
I also love the interface. Drag and drop elements to rearrange, and google will now let you make your own skins for it. They also have tabs, which allows you to group specific information in a way thats meaningful to you. It's very easy to use, and develop for.