Back in 2004 I wrote a post about a service that allowed you to track Ebay auctions via RSS. The notion of watching keywords or triggers with a mechanism like RSS is so logical that it stuns me to see how little of this has been adopted by companies in my segment of the technology business.   

I noticed that Niall Kennedy is going to Microsoft to build feed syndication into Live. When I consider what Microsoft is doing with their small business applications and the potential for leveraging Live.com, well it makes me think that maybe they do get it better than most and can make this happen

Burnham's Beat: Persistent Search: Search’s Next Big Battleground Simply put, Persistent Search allows users to enter a search query just once and then receive constant, near real-time, automatic updates whenever new content that meets their search criteria is published on the web.