According to CNet, "Microsoft has filed for two patents covering technology used to organize and read syndicated Web feeds" (Here's the paperwork). Dave Winer, unsurprisingly, isn't happy.
Jack adds: With luck, however, Dave will calm down a bit when he realises he has made two significant errors in saying: "Today I received a link to a patent granted to Microsoft, where they claim to have invented all this stuff." First, Microsoft makes no such claim; and second, it's a patent application, not the granting of a patent.
In any case, one of Microsoft's patent applications seems to cover an area where Apple has already applied for a patent (for a News feed browser), though the method may be different. Is there a patent lawyer in the house?