[Career][Tech]Web UI automation testing tools: Selenium

 Today, my friend GWQ  told me a good Web automation testing tools - Selenium .
That is an open source tool. And I find another good tools for project daily build :cruisecontrol .
There is two good article to introduce them:

More info about Selenium>> Automate acceptance tests with Selenium 
More info about CruiseContol>> CruiseControl Guide book.

Through that MSN TC have some interior powerful tools and rich lab source to realize the automation test. 
But I think Selenium still a wonderful tool, for it supports such a broad and various browser and platform. ( MS automation SDK only support the IE browser.)
.....
Then want to learn more about this interesting open source tool ......