FlowScan Current Version and Changelog.
FlowScan Distribution package.
FlowScan Installation.
Plonka, Dave. "FlowScan: A Network Traffic Flow Reporting and Visualization Tool". LISA 2001 Conference Proceedings. HTML, PostScript.
Dave Plonka's FlowScan presentations
RRGrapher distribution package.
RRDtool website.
cflowd website.
Taxonomy of NetFlow-related tools.