Scripting News’ Dave Winer and Microsoft’s Ray Ozzie have today co-announced what promises to be a huge innovation in the RSS and OPML space, called SSE.   Here is Ray Ozzie’s introduction to the announcement.  In his blog-post, he describes a calendaring problem that certainly resonates.  The spec is here. 

To my lawyer’s mind, best of all, they’ve used a Creative Commons license under which to release the SSE spec, just as with the RSS 2.0 spec itself, (formerly held in copyright by Userland).  Bravo, Microsoft, and Dave, no doubt their guiding light in getting there.