Every webmaster thinks why I have not been able to make s site like twitter. It is possible to have micro blogging sites at of your own. The open source script StatusNet can help you in achieving this goal

StatusNet is the open source micro messaging platform that helps you share and connect in real-time within your own domain. With StatusNet you can encourage collaboration, build and engage your community, and be in command of your brand.

If you want hassle free micro blogging site just sign free hosted version of this script. Well it is process of testing but you can still book your name or brand for future

Harness the ideas of your customers. Build great products. Turn customers into champions.

UserVoice adds structure to feedback and reduces the overhead of an honest dialog with our users — It creates a market around good ideas so we get more quality than quantity.

Your customers have great ideas. Are you ready to listen? Uservoice communities are the easiest way to turn customer feedback into action:

1. Share ideas.
2. Vote up the best.
3. Respond, implement & repeat!

You can also try this here https://uservoice.com/