Still, Internet ad salespeople will have to convince people like Peter Sykes. Online coupons are growing faster – up 50 percent between 20 – and worth more than $10 billion, Gordon Borrell says. That's a little faster than the almost 14 percent rise forecast for total online ad spending. Local online ad spending will grow nearly 18 percent this year, according to Borrell Associates Inc., a research and consulting firm in Williamsburg, Va. How quickly the online companies will succeed is another matter. 'The percentage of local advertising that is not digital – and that's most of it – will change because the cost of advertising online is really low,' says Frank Mulhern, associate dean of research at Northwestern's Medill School of Journalism in Evanston, Ill. By bringing mom and pop stores online, Google, Groupon, and all the other group coupon sites hope to reap a bonanza. Now, Google is reported to be testing its own local ad service, dubbed Google Offers.

One reason national ad giant Google was willing to pay a whopping $6 billion for online coupon company Groupon was the latter's ability to bring local businesses onto the Internet. This tranquil corner of the advertising world is huge – by one estimate 90 percent of ads are not digitized – and increasingly under scrutiny by online ad companies.

Five years ago, she posted a flier on a grocery store bulletin board and now has some 150 clients. 'I've never paid for advertising,' says Jeanne Pinsof Nolan, owner of The Organic Gardener in Glencoe, Ill. It's not only cheap – printed fliers and a few pushpins – it's also effective. Despite all the hoopla about online ads and coupons, most of America still advertises in amazingly archaic ways: a sign in a shop window, a business card on a bulletin board, a flier under the windshield wiper.

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