ZDNet’s Richard MacManus from the Web 2.0 Explorer Blog has done a review of some of the most popular Ajax based homepages available in the market. He classifies the Ajax Homepages portals into two distinct categories:

1) The big guns:
Microsoft (live.com)
Google (Google Personalized Homepage)
Yahoo (My Yahoo)

2) The little companies:
Netvibes
Protopage
PageFlakes
Homepages
Goowy

Read the full review on the ZDNet Blog