Justin Bieber was again angry at the media, but found Twitter's 140 character limit insufficient for expressing his rant. Meanwhile, on the other side of reality, Charlie Sheen wanted to let loose on Twitter in long-form. Both found innovative ways to overcome the 140 character curse.
Bieber is using Instagram to expand his tweet by sending people to Instagram service that allows more characters. Perhaps in the future, stars will take directly to Instagram to rant? Possibly.
Sheen decided to use the somewhat obvious-sounding TwitLonger service to expand his tweet. He expressed a "call to arms" against an apparent bullying incident against his daughter at a school.
One of the complaints that users have when using Twitter is that longer writings have to be read from bottom to top, since Twitter posts tweets according to time loaded. Although the user could conceivably plan ahead and post the last part of their message first, that would defeat the purpose of using Twitter as a simple messaging service.
It may be time for a longer Twitter service, or at least for the original site to expand their character limit. The company's founders have been very firm with the restriction, however, and have shown no signs of changing it. After all, it is both an annoyance as well as a fundamental idea behind the service: short messages.