RSS and Integration -- The Next Big Play?

Sure - RSS is big and using it for integration, or creating RSS through integration, is obviously an important idea especially given that there are so many opporunities to improve legacy content systems.

From a search perspective, it's a great idea - create dynamic RSS feeds based on search result. This lets you monitor an information system for recent changes that match a specific query. We call that "persistent search".

I'm not sure it's a "big play" though. MSN and Yahoo are now providing such features and although Google doesn't provide it [directly], their API makes it possible. And A9 has recently introduced a cool model (OpenSearch) that leverages RSS in a unique way, so Google is there (indirectly).