Wi-Fi networks also enable marketers to reach consumers on the go with ads targeted to specific geographic
locations. So far, though, the Wi-Fi networks that have mostly drawn big advertisers are those operated by airports and hotels.
Brokerage firm Charles Schwab, for example, has bought ads on wireless hubs at more than a dozen airports. The ads have outperformed other online ads, prompting the company to advertise through hotel Wi-Fi connections as well. Similarly, Dell started running ads on wireless networks at airports and hotels.