Microblogging tools
The tools below all claim to be different from Twitter in one way or another, it is worthwhile to research them before deciding to start a microblog.
Subjot: It has the ability to curate content from users you follow and the ability to comment on other people jots, making engagement easier. There is a 250 message character limit.
Identi.ca: Stream oriented social network running on open source (StatusNet) with 140 characters message limit, you can send private messages and create private groups, with group members needing administrator approval.
Beenup2: Specialist microblogging tool for photos, you can post pictures directly using mobile phone and after sharing it with the world, family or friends, people can make comments on the images.

Microblogging
Plurk: Service to showcase what you do in your life with a 140 characters limit, you can share links to videos and images with Plurk automatically creating a thumbnail view, a widget can be embedded into your blog.
Dailybooth: A photo only twitter like messaging tool, you can start a real time conversation with others using pictures with a link or phrase below, there is no need to sign up and photos can be added using your webcam or uploading them from your computer.
FreeSocial: Launched by the Swedish Pirate Party, you can use this tool (StatusNet) to post short notices about yourself, events, polls or questions. Private groups can be created with messages being sent to only members of the group, the site is secured against eavesdroppers using SSL encryption.
Businesses will want to look into a tool focused in production that makes it easy to work in a team and has strong security, like for example Co-op or Worksimple, Chinese users will want to use a Twitter clone that is not censored and blocked by the Chinese Government, like for example Weibo(微博), and the most adventurous might want to host their own microblogging service using open source software, like StatusNet or Sharetronix, but be aware that spam can be a problem and it needs maintenance.















