Is traffic cost inflation stalking you, or has it fully violated your 2007 marketing budget? No online marketer is exempt; online traffic costs will increase. It's the nature of supply and demand.

This relatively new Internet economy is settling into familiar patterns, and the costs of doing business online are beginning to resemble those of our brick-and-mortar brethren. In the brick-and-mortar world, there's no such thing as low-cost traffic.

The corner of 57th St. and Fifth Ave. in Manhattan is one of the highest trafficked intersections in the country. So it's no surprise the cost of commercial real estate is priced accordingly. To establish and support a retail store there, you must take advantage of the traffic's high margins and volumes.

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