Javier Sanz details 11 enhancements for e-commerce, built on top of the Stripe API
Websites know stuff -- the time, the day, even your location. Website personalization helps you use that data to present better options for your users.
Peter Nijssen continues his series on social network authentication and demonstrates how you can implement Twitter and Facebook as a login system
We use Facebook's Graph API to help us with a Facebook contest and mass-responding to tons of birthday wishes made on your Facebook timeline.
A roundup of learning tools, documentation, and guidelines for front-end developers.
Rakhitha Nimesh wraps up the series by completing the hashtag contest app with Twitter's API
Rakhitha Nimesh explains how you can build a hashtag contest in PHP with Twitter's API