One way to earn shared revenue is through Google AdSense. Right now, don't expect a ton but it's a great way to track stats and see what works.

How it works is you sign for a google account at google.com. If you alread have one, simply follow this
https://www.google.com/adsense/login/en_US/

From here you sign up to AdSense. Once signed up, you enter your info on your profile page (edit).

Once logged into your AdSense account. Where your profile page on DeathRattle says "adsense i.d." you type in the following that is found by "AdSense for Content":

pub-xxxxxxxxxxx

Don't type in the "ca-" that becomes before the numbers.

For your channel, just type in deathrattle

If you have any questions, please ask them here. Thanks.