The SecViz portal is meant for people that are working on log analysis, log mining and especially on visualization of security related data to exchange, discuss, and comment on techniques, methods, parsers, and sample graphs.
The maintainer of the site, Raffael Marty (ram at secviz dot org), is the founder of PixlCloud, a visualization in the cloud company. He has written about security data visualization for various books and blogs and also talks at security conferences around the world on the topic of data visualization. He is also the author of AfterGlow, an open source tool for data visualization.