Known packages for working with network-like data
(need to create better category system / tagging so they are not exclusive)
Rather than linking directly to the software's page, these should point to a page on the wiki cataloging links to the software's main site, supported formats, OS, authors, etc. to make it easy compare programs. For example, see Pajek
Analysis
Dynamics
Visualization
Data Collection
Modeling / Stats
Libraries / Code Repositories
the Krugle source code search engine is very useful (but still in beta)
Online services
Data Conversion
Other
Links to other lists of software