Guitar Violao Chords Cifras and Tabs for people learning or playing guitar

http://www.ultimate-guitar.com/ has the best guitar tabs for english music. In fact most websites get their tabs from ultimate guitar

http://www.cifras.com.br/cifras-tabs/ seems to have all the brasilian portuguese tabs

and http://vagalume.uol.com.br/
is mainly for lyrics (portuguese and english) it also has the chords for big selling songs