Glassdoor is probably the best resource on salary, so yes. You can also ask anonymously on forums. Mostly top tier companies going to pay higher than others (Google,FB,Amazon). I have heard Netflix pays well too. But salary should not be the only criteria, some companies pay well but they also take their money's worth from you by making you work late nights and weekends e.g Amazon , Netflix are known to crush you with work load.

I recently had experience with Hired.com. It was pretty good. All companies that were interested in me were posting their salary offers upfront so I can decide where I want to interview.