Big Data, some of its pitfalls, and how to avoid them

Interesting and well written article by Tim Harford of Financial Times: Big data: are we making a big mistake?.

Among other things, Hardford explains with several real-world examples one of the risks in big data analysis: jumping to conclusions without considering that the data you have may not be all the data available. (Nassim Taleb calls this data silent data in his book The Black Swan: The Impact of the Highly Improbable.)