facebook/netvizz, the end of Netvizz (?)
Iconosquare (Instagram Analytics) (commercial)
Informatica Marketplace: Extract Data from LinkedIn, Facebook and Twitter
Relationship Science (commercial)
Social Network Importer for NODEXL, read this
Socilab (LinkedIn Network Visualization and Analysis)
---
Digital Methods Initiative Tools
Social media data collection tools
Using Twitter as a data source: An overview of current social media research tools (update)
What I use for data-driven journalism (Duc Quang Nguyen)
10+ Free Social Network Analysis Tools
---
Flare Data Visualization for the Web
Gephi, Network analysis with Gephi, by Peter Aldhous
GUESS The Graph Visualization System
JUNG - Java Universal Network/Graph Framework
Kaggle, 15 Favorite Data Science Resources
Pajek - Program for Large Network Analysis (Pajek tutorials in Download page)
R, S routines, ggplot2, Revolutions, Introduction to R for Data Science
visone - analysis and visualization of social networks
--