Doorbell allows to receive feedback from users who interact with websites, iOS, and Android. This service aims to offer powerful searching and tagging options. Also, Doorbell intents to fit in an existing workflow, capture screenshots, and customize e-mails, colors, and notifications. Some of the most popular sites that have integrated with Doorbell include Github, TargetProcess, and Pivotal Tracker.
The following is a list of how-to and tutorial content that matched your search term. ProgrammableWeb's how-to content comes from two sources; full-blown tutorials that we publish ourselves and other highly relevant tutorials that we find elsewhere on the Web. This list represents on combination of both tutorial types and if you go to ProgrammableWeb's API University, you'll not only be able to find more, they are organized based on your role (API providers or developers who consumes APIs). If you know of a tutorial that would be of interest to the ProgrammableWeb community, we'd like to know about it. Be sure to check our guidelines for making contributions to ProgrammableWeb.