This week I revisited Twitter. I signed up during the first 23 Things, but didn't really use it. So I'm reevaluating. I have subscribed to some of the recommended library sites and have found useful information.
I also signed up for RSS a few years ago, but again did not keep checking for new feeds. I have refreshed my following list and will try it again.
As for Pushnote, I signed up, looked around and unsubscribed. If I can't keep up with Twitter and RSS then I certainly can't keep up w/this!