Search Tricks #2: News Search
Jacob Rosenberg of Yahoo! blogs about some very cool advanced searches you can do on news.yahoo.com
These include searching for news by location, source and category amongst many others. Full details on advanced searches at Y! news can be found here.
Further more, (this is the good bit!) you can convert any advanced Y! news search into a custom RSS feed! - the implications for use with seo are interesting to say the very least..