SForce WebServices
"Salesforce probably gets too many requests for special changes," said Sheryl Kingstone, an analyst at the Yankee Group. "It's really a business case. They can't build in all the one-off customer features that everyone wants, so the best alternative is to give the customers the tools to build it themselves."
[ZDNET]
Something to use your .NET skills on. Salesforce is launching webservices that let you hook into their backend and build your own tools on top of it. Pretty cool stuff. We will probably see a lot more of this going forward, and it could really help people reap the benefits of things like CRM, where a lot of custom functionality needs to be written on a per client basis, but the majority of the backend functionality remains the same.