2015 is the 10th birthday of Ruby on Rails (or simply called Rails), the popular open source web application framework that uses the Ruby programming language. Ever since Rails burst on the scene a decade ago it has continued to scale up as an elegant way to build dynamic websites quickly and efficiently. Rails has garnered a strong following, especially among tech startups. In fact, some of the best known firms out there are using the framework to build their sites. Examples of elegant sites built on Rails are Groupon, Airbnb, and Bloomberg.