The truth of the matter is that most clients have no idea what you’re talking about when it comes to raster vs. vector graphics, pre-production, or any of the fun things we designers deal with on a daily basis.  Rightfully so, that’s why they come to us in the first place right?

Well, a tool has come along that may very well ease some of your woes.  http://vectormagic.stanford.edu/

This vector magic tool allows you to upload an image, which it then tries to convert into a complete vectorized image that can be tweaked, resized, color matched, etc.  It even lets you convert fully photographic images into vectors, with some interesting results.  I’ve tested it out with various different qualities of images, and was very surprised with how well it handled conversion of some files.  Of course, there are limitation, and it won’t work very well for really small images with a lot of fine detail, but it’s already saved my behind a few times.  Best of all?  IT’S FREE!