Twitter

Start conversations about the things you find interesting. Share updates, photos, videos and more with your friends.

identi.ca is an open source social networking and micro-blogging service based on the pump.io software, using the Activity Streams protocol.

Friendica is a distributed social network application which runs on commodity hosting platforms - PHP/MySQL/Apache. (If you can install Drupal or Wordpress you can probably install Friendica) A single...

Create your own microblog and connect with your friends. Post from the Web, by SMS, or from desktop clients. Add comments, use icons, link Webfeeds. Take it with you on …

Heello is an online social networking and microblogging service that enables its users to send and read text-based posts and to share pictures and videos.

Plurk is a social journal for your life. Plurk is an easy way to chronicle and share the things you do, the way you feel, and all the other things …

To meet new friends, follow their presence on in the "background noise" of every day, discovering their tastes and their personality through their shares. The easiest way to share and …

[Now, discover the newly renewed me2day Ver.3.0.] - Adding Visited place information, pick the topics of stories such as book/album/movie and able to upload up to 5 photos at once …

Plerb is a social microblogging and chat community.

A social networking by JAYAC Inc. that is free for all and can suffer a major change every now and then so is currently little unstable.

Qaiku is a micro-blogging and lifestreaming service comparable to Twitter and Jaiku. It allows users to post short text or picture messages that other users can then comment. In comparison …

Subjot, a NYC-based startup that’s launching today to the public, might have the answer. It wants to help you connect with people you’re interested in, but only around the topics …

Whispurr is a new interactive way to stay in touch with people. We all have something to say to those that matter.

An easy-to-use microblogging community, developped by the Zagreb-based web development start-up Five Minutes, able to be connected with many other social networks and blogs.