Basic Functions of Ecosystems.
http://managingwholes.com/_eco-ecoblocks.htm
Ecological Modeling
http://managingwholes.com/models/
http://www.ecovis.org/VirtualEcosystems.htm
The ones below are a bit disappointing or excessively technical, but not completely lacking merit. Don't bother with them unless you're a real keener.
Ecological Modelling meets Interactive Geovisualization at GMD
http://www.ercim.org/publication/Ercim_News/enw45/andrienko.html
http://www.geovista.psu.edu/sites/icavis/projects.html
Inflow - Social Network Mapping and Measuring
http://www.orgnet.com/inflow3.html