Public budgets are published and are openly-available documents, but they're not exactly light reading. You'd think that with the capacity for communications available today, someone would be making them more available . . .
There are a few stabs at this, growing. One to note today: The Oregon Transparency site, which runs through a lot of information about state spending in a clearer than usual manner.
Also worth reviewing (if you're an Oregonian, and interested on how the state spends its money) there's this relatively obscure but useful document, recommended by a reader who found it more than a little enlightening.