I'm starting a business with my co founder, we are currently in the research and prototype stage.
We are about to conduct our market research into finding out from our potential workers how much they would expect to earn for doing X. What are some of the best ways in which you have found this information out?
There are a lot of sites out there have salary ranges for all sorts of jobs, like www.payscale.com and www.glassdoor.com
However these can often be misleading. I would recommend contacting a local HR company. They can give you good salary ranges for your location.
Or go on LinkedIn and post the question and lead them to a quick, short survey...many people may not want to publicly post what they make or pay.