Try out Cleary University's new database: http://library.cleary.edu/statista
As one of the world's most successful statistics databases, Statista consists of 1,500,000+ data sets on over 80,000 topics from more than 18,000 sources.
It also provides data from market forecasts, white paper studies, dossiers, and industry reports.
Data is updated daily.
A few tutorials are embedded below, but there are still more available from Statista, including: