Here is a great presentation on Facebook Analytics using text mining.
Citation;Text Analytics Summit 2009 – Roddy Lindsay – “Social Media, Happiness, Petabytes and LOLs”
and here is a presentation on HIVE and HADOOP
HIVE: Data Warehousing & Analytics on Hadoop
Facebook sure looks a surprisingly nice analytics company to work for.!!! No wonder they have all but swamped the competition.