Protopage - The best iGoogle alternative. Chris Pirillo calls Protopage "The best designed".
AnyChart - Award-winning JavaScript charting library & Qlik Sense extensions from a global leader in data visualization! Loved by thousands of happy customers, including over 75% of Fortune 500 companies & over half of the top 1000 software vendors worldwide.
Netvibes - First personalized dashboard publishing platform for the Web. Digital life managment, Widget distribution services and brand observation rooms.
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application
Favepad - An alternative start page with Facebook, Twitter, GMail, and Yahoo! Mail dynamic widgets.
Charts Factory - Create simple charts super fast and for free!