Here is a great resource for all guitar players. Not sure what chord you are playing? Well just place you fingering on this virtual fretboard by clicking the fret and string where your fingers are and it will tell you all the possible names for the chord you are playing. You can also hit the play button to hear the chord. This is a really great guitar chord tool. Check it out!
It's a great little free online guitar chord finder, for stringers at pretty much any level.