Plurk is the new social microblogging tool that is buzzing all over the blogosphere today. When i signed up first it was confusing but then got used to it. So what is plurk, Plurk is a microblogging platform like Twitter, Pownce, Jaiku etc but with rich user interface and some more features.
User interface is very well designed particularly the timeline feature but it is not necessary, twitter interface feels more refreshing and simple to use. With the timeline you can see your life streaming and also your friends messages just by scrolling with mouse.
Another cool thing about the service is its support for Emoticons, if you use IM a lot you know the value of emoticons, they will give an expression to your mood. There is also a Karma factor involved, if you have more Karma you will get more choices for emoticons.
Differentiating factors from other microblogging services apart from Timeline is the support for groups called cliques and special handlers for posting images, videos, moods like wants, loves etc.