And, here is a Beer recommendation engine ... Cheers

How about a recommendation engine for beer? Yhat did just that...Cheers!
This neat little app is the product of a recommendation system built using the R language by the folks behind the yhat blog. It's based on about 1.5 million beer reviews from the Beer Advocate. The ratings were read into a Postgres database and then imported to R using the RPostgreSQL package
source: http://blog.revolutionanalytics.com/2013/06/a-beer-recommendation-system-made-with-r.html