Sweetter is an opensource Twitter-like service (or Twitter clone, might better describe the service). It’s microblogging combined with Pligg style voting. So you can write whatever you want—about that pie you ate, or about a new site you found—however, if the crowd doesn’t like your posts, you can lose karma points. Like Twitter, there is a 140 character limit. But beyond that, you’ve got points and a ToDo system. This means you can send a sweet (basically a tweet) giving someone a task to do. You gain points by having more followers and having your sweets voted for in a positive manner. The whole objective is to become juaker, meaning you’ve got 25 or more points. You don’t want to be a ‘looser’ which means your points run into the red. Sweetter has plug-ins for Twitter, Jaiku, and you can make your own.