KDnuggets ranks as one of the most important web portals for analytics practitioners and the data mining and analytics community. In its recent 2013 “14thannual software poll,” the open source and free RapidMiner/RapidAnalytics (“RapidMiner”) software, from Rapid-I, was the most used analytics software at 39.2% of respondents . Rapid-I’s free software led other open source and highly distributed commercial tools, like R and Excel. It only slightly trailed open source R and commercial Excel in 2012, but took the lead in the 2013 poll. Rapid-I’s commercial versions also scored well, with 12% of respondents citing commercial RapidMiner as an analytics tool they used.