This is intersting. Great potential.
O’Reilly Radar > Rollyo: Roll Your Own Search Engine
Rollyo affords anyone the ability to roll their own Yahoo!-powered search engine, attenuating results to a set of up to 25 sites. And while the searchrolls (as they’re called) you create are around a particular topic (e.g. Food and Dining), they are also attached to a real person (e.g. Food and Dining is by Jason Kottke). The result is a topic-specific search created and maintained by a trusted source.