URL Shortener
Google http://www.goo.gl/
TLI.LI http://tli.li
短网址 http://dig.la/ (Remarks, can give name as you like)
76.gd http://76.gd/ (Maybe China's URL Shortener)
xp.gd http://xp.gd/ (Another one from China)
Adf.ly http://adf.ly/
bgo.tw http://bgo.tw (Possible from Taiwan. Can see preview QRcode and other results)
lnk.by http://www.lnk.by
Linkee http://www.linkee.com
51.vc http://51.vc China Url shortener. Full name is 51 Visit Center -_-
bit.ly http://bit.y
bitly.com http://bitly.com