Expedia / Travelocity web services?

Some of the travel resellers have Web APIs...

I'm trying to remember which ones... Travelocity might be one... Hotels.com
another.

They have strict rules on how they can be used though - no price comparisons
with other tools in most cases.

Kayak has a web services API that you can sign up for:

http://labs.kayak.com

Thanks,
Matt