Best Free Data Mining Tools

I recently saw the article, The Best Data Mining Tools You Can Use for Free in Your Company. It contains a very brief description of each of the following tools.

1. RapidMiner
2. RapidAnalytics
3. Weka
4. PSPP
5. KNIME
6. Orange
7. Apache Mahout
8. jHepWork
9. Rattle

See The Best Data Mining Tools You Can Use for Free in Your Company for more details, links, and pictures.