Rui Mendes Homepage

Particle Swarm Central: This is the site about Particle Swarm. It is the gathering place of researchers in the area, where to look for conferences and papers.
Bibliography: A very useful collection of BibTeX entries.
Math Stuff about PSO: Maurice Clerc has a collection of interesting links about his research in PSO. Among those, the most interesting from my point of view are the constriction coefficient, the hypersphere generation and Tribes.
The R Project: R is "GNU S", a freely available language and environment for statistical computing and graphics which provides a wide variety of statistical and graphical techniques: linear and nonlinear modelling, statistical tests, time series analysis, classification, clustering, etc.

Some useful links