I have been playing with Netvibes for a while. Today I made it my home page. It is cool. You can build your portal page by dragging and dropping widgets and setting a few parameters. My home page contains some tech news feeds, a few RSS feeds, my del.icio.us bookmarks and some cool widgets like Astronomy Today, Blog Search, Image Search, Podcast Search, Video Search.
Netvibes now has a Unviersal Widget API. Here is a short description from their site:
With UWA, your Netvibes widget is by default able to work on most other widget platforms and blog systems: Netvibes, Google IG, Apple Dashboard…
Code once and run your widget on most platforms.
Get access to the Netvibes UI environment, a cool UI that gives a fresh and shiny look to your widget.
Build your widgets around open services, or give your users access to your open API through your very own widget.
Coming soon: leverage our translation community to see your widget ported and localized.
I tested a few and they work both in Netvibes as well as Google Pages. I hope we can get UWA widely adopted across vendors.