Whoa, Josh beat me to the answer. :) In addition, the minor pentatonic scale is what is used by just about any popular rock group you can find. Just get a metallica album and you can probably figure out any of their solos based of that scale. Anyways, here's the scales in tab form, maybe that'll help some too.

1 2 3 5 6, and 1 b3 4 5 b7

A minor Pentatonic
e |--5-------------8---------
b |--5-------------8---------
g |--5-------7---------------
d |--5-------7---------------
a |--5-------7---------------
e |--5-------------8---------

A major Pentatonic
e |--------5----------------
b |--------5------7----------
g |---4--------6------------
d |---4-----------7----------
a |---4-----------7----------
e |--------5------7-----------

I think that's right for the major Pentatonic. I usually stick to the minor pentatonic, natural minor, or the major scale so I'm unsure about the major pent.