1500 free vector symbol's,swatch's
that's mental
IAN Symbol Libraries (Free Vector Symbols for Illustrator) - Integration and Application Network
The IAN symbol libraries contain over 1500 custom made vector symbols (in 32 categories)The libraries are designed primarily for use with Adobe Illustrator (requires version 10 or better), however we also offer eps and svg versions for non-Illustrator users. The symbols allow diagrammatic representations of complex processes to be developed easily with minimal graphical skills.
Included in the FREE download are:
* 32 self-installing symbol libraries
* 1500+ science/ecology symbols
* 100+ custom swatches
* Ecosystem landscape diagrams
* Interactive multimedia tutorial
* PDF index of all symbols