Search Engines
CiteSeer Scientific Literature Digital Library
DBLP Computer Science Bibliography
PubNet: Publication Network Utility
KartOO: A Meta Search Engine with Visual Display Interfaces
Dogpile: A Meta Search Engine Combining Google, Yahoo, MSN and Ask.
Search Engine Watch
Data Mining Sites
KDnuggets: news, sites, tools and more
WEKA: Waikato Environment for Knowledge Analysis, a popular data mining toolkit
Tools
Prefuse: An Impressive Java Data Visualization Package
Pajek: Large Network Analysis
yED: A Powerful Java Graph Editor
