Here are some links to basic (Major and Minor) chord shapes for the guitar. Inversions of these and other chords (sevenths, diminished, etc...) will follow in time.
note: the C major chord is actually a C/G which means that you are playing the top string as well. A normal C major would be with the top string left unplayed.
The 5 Basic Chord Shapes:
A
E
D
G
C
More useful chord shapes:
Em
Am
Dm
Some examples of bar chords:
F
B
Bm
Bar Chords
Inversions
Back to Stages of Mastering the Guitar
http://www.theguitarmaster.co.uk/article.php/basic-chord-shapes