In a post by NFFC, old admin at WMW, over at Search Engine Watch Forums, he reveals that Microsoft is deploying these easy to detect cloaked or doorway pages. Want to see?.
This news seems to be taking off. A thread at Cre8asite Forums, started by Webby, named Microsoft using doorway pages delves deeper into this topic. As noted in the thread, if you turn off your JavaScript function in your browser and visit this page, you will see a page that reads "Welcome to our company. This page has been designed to help our visitors finding directly the information, product or service they are searching in our websites." First thing, this sentence doesn't even read well and secondly this is a search engine "no-no". If you want to see a screen image of the page, click here.
Make sure to check out the thread.