How much to charge for ecommerce consulting?

I have a successful ecommerce background and I am gifted with lots of knowledge. Now other companies are willing to contract me as a consultant on ecommerce related businesses. Those are very small companies, nothing big. How much should I charge them on a monthly basis as a ecommerce marketing and technology consultant? I would meet with this company once a week for 2-3 hours, but my knowledge is very deep and good.

Basically this company will create a simple internet store, but they need expertise on how to implement it from a technical point of view and from a marketing view.

It depends on how good you really are.

I know of some ecommerce consultants that charge as low as $50 per hour, while some of the better ones charge $250 per hour. The more services you offer, the higher the rate you can charge.

The thing to remember is to never set your charges too low. It is MUCH HARDER to raise your rates when you feel you are undervaluing your services, compared to cutting your rates when nobody's biting.