CSTeachingTips.org is a project to document and disseminate effective computer science teaching practices. These computer science teaching tips are based upon interviews with computer science teachers and education research. The tips are designed to help teachers anticipate students’ difficulties and build upon students’ strengths. Tips are posted online and are disseminated daily on Twitter (twitter.com/CSTeachingTips) and Facebook (facebook.com/csteachingtips/). The project is funded by the National Science Foundation (CNS #1339404) and is administered by Colleen Lewis, a computer science professor at Harvey Mudd College.