Further information

The SVG Recommendation itself:

http://www.w3.org/TR/SVG/

Textbooks

There are about six books published already (!)

Some other sites on SVG:

http://www.kevlindev.com (Kevin Lindsey)

http://pilat.free.fr/filters/ (Michel Hirtzler)

http://groups.yahoo.com/group/svg-developers/

....

Proceedings of SVG Open 2002

http://www.svgopen.org/index-2002.shtml

Start by:

http://wdvl.com/Authoring/Languages/XML/SVG/

http://www.w3.org/Graphics/SVG/