Protopage - The best iGoogle alternative. Chris Pirillo calls Protopage "The best designed".
Netvibes - First personalized dashboard publishing platform for the Web. Digital life managment, Widget distribution services and brand observation rooms.
Aboogy - Aboogy is designed to be your perfect homepage.
start.me - A Modern-day bookmark manager. A place for your favorites. A news feed (RSS) reader. A browser startpage. A portal for your team.
Momentum - Agile goal and performance management
Favepad - An alternative start page with Facebook, Twitter, GMail, and Yahoo! Mail dynamic widgets.