Now you can check latest tips on Business Intelligence Open Source, mainly Pentaho, Ctools and Saiku in January.You can follow all the historic tips from stratebi demo [http://sample.stratebi.es/], under new info icon, - http://www.optier.com/blog/the-difference-between-big-data-and-big-data-analytics/ - http://diethardsteiner.blogspot.co.uk/2013/