I’m looking for examples of groovy Vertical Search services. Sidestep is one for travel

We search over 150 travel websites to bring you the very best travel values on the web.

Another would be oodle for classifieds (MySpider in Australia?):

Oodle makes it easy to use online classifieds. We bring together loads of listings from hundreds of local and national sources and help you find exactly what you’re looking for — the right job or place to volunteer, the perfect home, or a great deal on a used ladder

I’d like examples of straight out spidered search, and then those with an value adds (community or AJAX etc). If you have any that you think are truly vertical and groovy, email me at lpapworth at gmail.com or comment here please? Thank you, I appreciate it.