iGoogle Portal - First of all, it merits mentioning here that this personalized platform by no means equal to iGoogle.
Start.io - Make awesome homepages that are simple and wonderful.
Awesome New Tab Page - Enhance your Google Chrome New Tab Page with ultimate customizability and power. Awesome, like you.
Netvibes - First personalized dashboard publishing platform for the Web. Digital life managment, Widget distribution services and brand observation rooms.
Humble New Tab Page - Redesigned new tab page featuring your bookmarks, apps, most visited, recently closed, and weather...
Protopage - The best iGoogle alternative. Chris Pirillo calls Protopage "The best designed".