There are plenty of websites out there that can tell you industry averages for different positions. Start with glassceiling.com.

If you are really wanting to get equity and you think you've got what it takes, consider offering some audacious sales goals in return for equity.

Otherwise, get in there and prove yourself and make yourself invaluable. Once they can't live without you, renegotiate your package to include equity.

Best of luck!

Ken Clark
Coach, consultant and therapist to entrepreneurs