Twitter is a fantastic microblog system. In fact, it can be much more. For example I also use it for reminders and newsfeed. Some of my “twitter bots” are publicly available. Those are listed on this page.
Staaterfile
Staaterfile.nl is an expermimental dutch traffic site. Following staaterfile on twitter will update you if there is any traffic information for the Netherlands. Sometime it will be possible to receive specific information by tweeting @staaterfile or sending a direct message.
Filmsoptv