Travelers' search engine

Amanda posted about this a while ago, but I was prompted to follow up after seeing this post on the Yahoo! Search blog and after receiving an e-mail from Sara, who used this service successfully and passed the link on to her colleagues.

Yahoo! FareChase is a search engine that searches across various travel Web sites looking for the lowest fare.

I've been procrastinating, but will be using the site soon to plan my trip to Baltimore.