Read/Write Web has a great article on igoogle titled "iGoogle: The Epitome of Google Personalization".

iGoogle is Google's answer to Netvibes, Pageflakes, and Protopage. iGoogle provides a user with loads of options, a ton of widgets or tools to display content on your personalized home page.

Aldan Henry, the writer of the iGoogle review in "Read/Write Web" concludes his review with an overall summary of iGoogle:

"AJAX start pages becoming very popular. Though iGoogle may lack some of the functionality and features of the space leaders mentioned above (most notably a more intuitive set-up process), I found the service loads and operates much faster. All in all, however, I was a bit disappointed by the overall service."

While I use iGoogle, there are a number of things that I do not like about their personalization features. For example I cannot reduce the number of columns from three to two. I feel it would be a lot less cluttered if that could be done.

Overall, I think iGoogle has a good start, but there are still a number of things they need to focus on and get right as shown in the Read/Write Web article.