If you want to be a merit source:

 1. Be a somewhat established member.
 2. Collect TEN posts written in the last couple of months by other people that have not received nearly enough merit for how good they are, and post quotes for them all in a new Meta thread. The point of this is to demonstrate your ability to give out merit usefully.
 3. We will take a look at your history and maybe make you a source.

I am especially eager to have merit sources in sub-communities such as the local sections.