This is a great site for comparing the different sounds of MANY popular mics of all kinds. I use it a lot when I'm looking to pick up a new mic to add to the arsenal. I actually just used it the other day to Verify the Blue Woodpecker Ribbon mic was going to work for me, before i made the purchase.
So here it is. A super crucial resource that must be bookmarked. Enjoy!
Microphone Clips and Audio Samples at StudioAuditions.com