Ms. Dewey is a interactive Flash-based search engine from our friends at Microsoft. As you preform a search, Ms. Dewey will make all sorts of sarcastic comments or do some other fun and weird stuff.
Its fun to type in keywords just to see what she will say or do next. I have not seen her really repeat herself. So there must be hundreds of clips that they recorded when they created this site.
If you are wondering who is Ms. Dewey, she is played by Janina Gavankar, who is an actress/model/vocalist.