Since there is no "standard" pay, you're best bet would be to obtain a copy of NBAA's Salary Guideline. They're probably the most accurate, but again, it doesn't mean every company will follow that guide.
Another sounce for raw info (light jet, med. jet, etc) would be avcrew.com and their survey. A last resort would be ProPilot (though nearly every chief pilot I've ever talked to will disregard their survery before all others).
From personal experience: I've seen large companies (not necessarily Fortune 500) start FOs from $16,000 to $30,000. Captains from $22,000 to $54,000 (500 series excluding Exel). Probably a safe bet to say Fortune 500 companies are a little better. A buddy started 6 years ago at a Fortune 200 company as a C650 FO at $65,000.
A 135/91 company in the mid Atlantic pays their captains $72,000 a year. They manage a couple 560's.You get 6 days scheduled off a month and you get to wear a pager.
Another Fortune 500 out of IAD starts their guys off at $70,000.Work 5 days a week,2 weeks on,1 week off.All part 91.