This article is featured in the new DZone Guide to Web Development. Get your free copy for more insightful articles, industry statistics, and more! People have been creating websites for the longest time. Some may say “HTML is HTML.” Well, not exactly: websites are now rendered on many different types of devices, browsers, form factors, etc. New technologies enable HTML5 to offer content and services according to the user’s context (location, time, etc.). At the same time, development cycles accelerate and Sprints are shrinking as organizations adopt Agile practices. This article will offer best practices to improve team efficiency and deliver high-quality products while maintaining velocity and a competitive edge.