Basically what the title describes, I added youtube buttons that enables you to subscribe to the actors' channels. For example Dan's. I also added Jennette and Miranda's.
Edit: I added Twitter follow buttons for Dan and the main cast with help from EpicFork once again and today since it's the 28th, I'll consider it my birthday gift. Thanks buddy.
Note: If you already follow Dan which I'm sure all of you, the twitter button appears gray, so you don't try to re-follow them.