The following is a list of resources you may find useful - I found them very interesting!

John Hopkins Data Science and R-Programming Coursera Course
If you like online learning, this is a great course with many external resources and a large learning community. If you get stuck, you can find help in the course forum or wiki.

Data tidying
An overview of cleaning and organizing data so that it can be evaluated, with examples and a link to more information in Hadley Wickham's Git repository.

Statistics video series
Discussion and several illustrations of statistic and modeling concepts by Data School (