Hadoop & Startups: Where Open Source Meets Business Data
Bold prediction about open source big data technology expanding it’s influence beyond Web startups to traditional Enterprise IT:
Hadoop is the ultimate trojan horse in enterprise IT. It strikes at the heart of business — the data — in a way that adds value immediately, while setting the stage for viral growth in the future, connecting the two ecosystems and the technological and cultural levels.
Whether you agree or not — great read for its many references for emerging big data technologies.

Free online article listing key aspects of categorizing data mining software and an extensive list of available candidates. While lacking an in-depth discussion and actual classification of the mentioned packages, it is still a useful source to discover experimental and research related data mining packages.