I use the following free and low-cost software on a regular basis:
- Pajek, by Vladimir Batagelj & Andrej Mrvar - excellent for visualization & analysis of large networks
- UCINet / NetDraw, by Steve Borgatti @ Analytic Technologies - provides advanced, matrix-based network analyses
- Mage / Kinemage, David & Jane Richardson, et al. @ The Richardson Lab, Duke University - 3D network visualization
- Statnet / ERGM, by Hunter, Butts, Goodreau, Handcock, Morris, et al. - statistical simulation of networks (presentation)
General Networks Links
- INSNA - International Network for Social Network Analysis - if you're interested in network analysis, this is network central
- NetVis - THE collection of network visualization resources, a one-stop super-shop
- Cytoscape - for visualizing networks of molecular interaction - it could be good for many more things
Access Database Resources
- DatabaseDev - a UK-based site with excellent FAQs, tutorials, forums and code
- Blue Claw Database Design, LLC - excellent tips and tricks, stuff you won't find in any book. They will custom design systems as well.
- Allen Browne's Tips - for Access database developers. One of the best sites out there for undocumented tips and tricks.
- VB Forums - a comprehensive forum for Visual Basic development
- Driverstock - Driver Downloads For Free - A great place for finding obscure device drivers.