Yesterday was the fourth anniversary of the Revolutions blog. Our first post was way back on December 9, 2008, and in the four years since we've been regularly posting about R, open source, statistics, big data, data science and other random things that happened to catch our eye. In fact, there have been 1488 posts published in the last four years: a rate of just more than one a day! In the past year, the blog has been visited just shy of 600,000 times (for a little over 850k pageviews) — that's a 40% increase over the prior year. Thanks go to the guest bloggers who contributed to the blog this year, and to everyone in the R community who has published a package, tip, or application of R for us to share.  The 10 most popular new posts of the last year are: R and Hadoop: Step-by-step tutorials The age of sail, visualized A big list of the things R can do The rapidly increasing ideology of the US Republican Party Machine Learning for Hackers Creating beautiful maps with R Because it's Friday: What statisticians actually do Visualize your Facebook friends network with R A Napa Valley wine tasting map, made with R and ggmap Style your R charts like the Economist, Tableau ... or XKCD It's great to see that 9 out of 10 of the most popular posts of last year were related to R, and I'm looking forward to another great year of sharing news with the R community. My thanks go the team here at Revolution Analytics for allowing me to indulge my passion on the blog. But most importantly my sincerest thanks go to you, gentle reader, for visiting. Your editor,David Smith