Twitter.com
Weibo.com
Plurk.com
Plerb.com
Khaces.com
Meemi.com
Squiper.com
Heello.com
Fanfou.com
Plappadu.com
Tumblr.com
Plasr.com
Pheed.com
Edmodo.com
App.net
Identi.ca
Bloggy.se
Cirip.ro
Mimo.vn
Microca.st
Twii.me - http://twii.me
Quitter.se
Telog.com.br
T.qq.com
I.rationa.li
see also:
https://thoughtstreams.io/jansegers/microblogs-worldwide/