Agna is a freeware application designed for social network analysis, sociometry and sequential analysis. Platform-independent, friendly and easy-to-learn, integrated visual network editor, html output, free.
TubeMogul is a free service that provides a single point for deploying uploads to the top video sharing sites, and analytics on who, what, and how videos are being viewed.
The h-index (Hirsch Number) is a metric that is increasingly becoming of interest to researchers, especially in the light of the REF. An h-index is “a number that quantifies both the actual scientific productivity and the apparent scientific impact of a scientist“. You can work it out manually, but to be honest you’d need to be mad or a bibliometrics fiend to want to.