L-System Links

http://fractint.oblivion.cz/
A set of some beautyful L-Systems drawn using FractInt.

http://home.wanadoo.nl/laurens.lapre/index.html
Home of LParser, a powerful L-System parser written by Laurens Lapre.

http://www.math.okstate.edu/mathdept/dynamics/lecnotes/lecnotes.html
Dynamical Systems and Fractals Lecture Notes

http://dmoz.org/Computers/Artificial_Life/Lindenmayer_Systems/
Lindenmayer Systems category at DMOZ. Has some useful links available.

http://algorithmicbotany.org/papers/
List of publications of the Biological Modeling and Visualization research group at the University of Calgary.