If you want to give people more options without forcing a playlist, Instructables user LifegraphLabs shows off a system that uses RFID, an Arduino, and Facebook to play everyone's favorites songs.

CodeBender is a browser-based IDE that supports uploading to nearly any Arduino board. You can use the program to copy sample code, browse code uploaded by other users, and even store private ...

A lot of people have used ESP8266 to add inexpensive WiFi connectivity to their projects, but [Oscar] decided to take it one step further and program an Arduino over WiFi with the ESP8266.