A good friend of mine sent me the link for Color Suckr last week and I've been having a ball testing it out!  All you have to do is link the url of an image you'd like to pull a color scheme out of and it automatically pulls the most common colors out of it!  It also gives you all the info needed on the colors to pull them up in programs such as Photoshop.  You can also drag around the colors on the page to move and compare.  Besides this being a great tool for decorating your home, it could be very useful in coming up with your wedding palette.  Maybe pull some colors from one of your favorite images or paintings.  Here are a few of my favorite prints that I tried it out on...

A print by JMW Turner
a print by Vincent Van Gogh