I've subscribed to Groove3 since last year and it's a brilliant thing. Eli Krantzberg is amazing as pointed out by everyone here. But even others are great too. It has got everything from fundamentals like EQ, Compression, etc. to almost all concievable plugins and DAWs. Only thing is one must watch the videos and not procrastinate.
Only other tutorial series I like are Producertech, especially the Rob Jones tutorials which are super awesome and CreativeLive tutorials by Kenny Gioa and Graham Cochrane.