Ask HN: Resources for new business tax/legal information

I've formed a LLC in Oklahoma. I filed with the Secretary of State and registered with the local tax authority. I'd like references to sites that are filled with useful information - too many seem to be superficial wrappers around sales pitches for ebooks and pre-made forms. My current interest is in the construction of operating agreements, as that's the step I'm on. Also, I'm unsure of the specific requirements for keeping myself free of personal liability.

My company's specifics: Revenue is from the purchase of virtual items in a browser-based game, advertising, and I'm looking into developing Android and iPhone applications. Resources regarding reporting and the taxation of these would be particularly appreciated.