Pablo Barberá, Dan Cervone, and I prepared a short course at New York University on Data Science and Social Science, sponsored by several institutes at NYU. The course was intended as an introduction to R and basic data science tasks, including data visualization, social network analysis, textual analysis, web scraping, and APIs. The workshop is geared towards social scientists with little experience in R, but experience with other statistical packages.
You can download and tinker around with the materials on GitHub.