I made a poster of all my favorite tweets on twitter, because I love them.
It's fun to browse this big poster and share things you've found with other people, like Chaim is doing. I've since moved it from the floor to standing height and it's much nicer to browse (you can actually look at the stuff on the bottom). At a meeting for But I Just Met 'Er, a small group of people looked over it together and put small post-its on their favorites. It was neat that they could all look at it at the same time and share things they found.