- Twitter.com (no 1 in the list but actually this is last option)
- DestroyTwitter (you need Adobe Air to use this software)
- iTweet.net (web base like Twitter.com but with more functionality like ability to retweet)
- Nambu - iPhone application that I discover few hours ago. This application will kill Twitterrific and other iPhone Twitter apps. Search it at App Store / iTunes
- tweet.IM - add twitter bot to your Google Talk, you will receive update there and you can update your status there.
How do I update my twitter
There is a lot of way you can update twitter, here is my list: