I am looking for all the features that a YouTube url can have?
http://www.youtube.com/watch?v=6FWUjJF1ai0&feature=related
So far I have seen feature=relmfu, related, fvst, fvwrel. Is there a list for this somewhere. Also, my ultimate aim is to extract the video id (6FWUjJF1ai) from all possible youtube urls. How can I do that? It seems to be difficult. Is there anyone who has already done that?