You can upload your package contents to your own website, or if you don't have one, you can upload them to a public DropBox folder for example, and then just distribute the link.
For distribution, you can upload the game to sites like Kongregrate and Newgrounds (currently private requests must be made for HTML5 games), or you can begin searching for sponsors. I discuss the process of finding sponsors in my book, Making Money With HTML5, and they are a great way to reach huge audiences. My HTML5 games portfolio recently exceeded 2,000,000 plays in less than a year.
Also, you mentioned you're including sound files in your game. I'd recommend against this, as you'll find a lot of incompatibilities with audio at this time, especially on mobile devices.