Youtube References and API info
General API:
- player references: https://developers.google.com/youtube/js_api_reference
Other info:
- Calculating viewing time: http://stackoverflow.com/questions/11775207/calculate-percentage-of-youtube-video-viewed-with-api
- Other analytics: http://www.lunametrics.com/blog/2012/10/22/automatically-track-youtube-videos-events-google-analytics/