Extendify is a Google Chrome Extension that adds Spotify Play Buttons on sites with information related to music (artists, playlists, tracks...).
Add it to your Chrome Browser and you will see SPB attached to artist, albums and track pages on this websites:
An iQuiz-inspired project using the Spotify Web API. It uses the 30s audio previews, cover arts and user's library together with the SpeechSynthesis API. And some other buzzword I forget.
Source: https://github.com/JMPerez/spotify-iquiz... Read More
A report with some insights from Spotify after making many requests to the Spotify Web API.