Linkedin Ettiquette Question

Would it be frowned upon to connect with a worker from a company I applied for? I would basically just ask to get more info on the position, hopefully to get my foot in the door. An how high up is too far to connect (Like CEO vs. manager)? This is a startup by the way.

usa jobs
usa jobs resume
usa hotel jobs
usajobs
usa jobs federal government
usa job in ksa
usa jobs
usa jobs login
usa jobs gov
usajobs.gov
www.usajobs.gov
usajobs.com
usajobs
usajobs.gov official