I've been listening to Twig over the last couple of weeks and I'm all keen to get my start putting some of my brain store back out there (even if I'm the only one who ever reads this blog).
I'll going to try out some of the stuff I've been hearing about and see where the journey leads. I like the look of Pubsubhubbub (gosh that is an ugly name), and where Google Reader is going.
Where I work we generate business event notifications for our customers. RSS has been available right from day dot, but the aggregation of these in GR has got some legs.