Today I'd like to talk about Vector Art. Bitmaps are generated from chunks of colors, kind of the same way that Icons are designed and made. Vector Art, however, is designed using Math to generate several points in a line that connect to form a more detailed image. Vector Art images can be magnified to large sizes, without showing great loss in detail. It's also like looking at a well defined Mandelbrot image. You can also magnify these images to huge sizes.

Here is a very good article that explains Vector Art compared to Bitmap generated Art.
http://www.photoshopsupport.com/shoptalk/vectors-and-bitmaps.html

I've tried to find some websites where you can download vector art and use the images for either personal or commercial projects. Here some of the better websites that I've found:
http://www.vecteezy.com/ Vecteezy is a community of vector art.
http://vector4free.com/ vector4free.com is a web site dedicated to free vector graphics
http://www.vectorjunky.com/ All The vector mentioned are the property of their respective owners, and are either freeware, shareware, demo versions or public domain. Please use these images responsibly.
http://vectorlady.com/ Ann has a good site set up with some free vectors.
http://www.vectorjungle.com/ Some nicely done vectors, illustrations and layouts.
http://garcya.us/ Free vector graphics, vector icons, templates and free tools for web designers all around the world!

There are so many ways to discovery vector art. If you are into Desktop Publishing the quality of vector art images will certainly make your projects and layout stand out in this highly competitive market.