SVG is a feature rich two-dimensional graphics language which allows for the combination of vector graphic shapes, raster images (jpeg, png, etc), text and filters. Interactivity can be added to SVG images using JavaScript or an animation standard called SMIL.
Don't see anything above? Static Picture? Try upgrading your browser. The latest versions of Safari, Chrome and Firefox all display a majority of the examples on this site.
The source of all examples may be freely downloaded and examined.