Mark Twain has some script writing advice for Delaware Valley small business owners who depend on radio advertising to market their goods and services.

"The difference between the almost right word and the right word is really a large matter - 'tis the difference between the lightning-bug and the lightning," advises Mr. Twain.

In other words, fill your commercials with lightning, not bugs!

Currently, according to the Oxford English Dictionary, there are 171,476 words in the English language. A handful of these words, small business owners can't use in their commercials on Philadelphia radio. The Supreme Court of the United States says so.

Of all the words that can be used in broadcast advertising, however, there is one word that should be shunned: 'get' and all of its nasty derivative forms including 'got' and 'gotten'.  Here's why.

"I wish I had known about radio advertising when we opened up our first store in 1998," says the Dan DiZio the co-founder and CEO of Philly Pretzel Factory. "It would have allowed us to grow even faster than we did."

With permission of his Mom, an 11-year old Mr. DiZio began selling pretzels on the treacherous intersection of Roosevelt Boulevard and Rhawn Street in Northeast Philadelphia. His inventory was remnants from his neighbor, who owned the Kensington Soft Pretzel bakery.

"On the first day I sold 1000 pretzels", recalls Mr. Dizio. "After splitting the profits with my neighbor, I had $100 left in my pocket. A lot of money for an 11-year-old."

Shortly after that, Mr. DiZio began recruiting 40-50 classmates a day to hawk even more pretzels on street corners all over the neighborhood.  This early taste of franchising kept his pockets very full through middle school, high school, and into college.

This was the origin of what, today, is a $50,000,000 a year business with 175 stores in 17 states. Eighty-five of those locations are within 40 miles of Center City Philadelphia. Mr. DiZio has gone from selling 1000 pretzels per day to 175,000,000 per year.

Delaware Valley consumers will spend $98 billion on goods and services over the next year. To claim a significant portion of those expenditures, small business owners need to be at the top of customers' minds when it comes time to buy.

The first radio station in Philadelphia signed on the air 1922.  Since then, thousands of business owners have known, intuitively, that advertising on the medium was a potent way to be remembered when a purchase was imminent. 

As a matter of fact, some of the first Philadelphia radio stations were owned by the Delaware Valley's largest retailers including Gimbel's, and Wanamaker's, 

Today, area business owners no longer need to base their advertising plans on intuition.  Now, there is proof that advertising on Philadelphia radio creates the top of mind awareness necessary to drive sales.

Two things are remarkable about voting day in 1920.  It was the first time, ever, women could participate in the selection of the U.S. President. It was also the first time live election results were broadcast on the radio. Not to mention, it was also the first radio broadcast, ever.

The voters' choice that night was between Warren G. Harding  and James M. Cox.  Both men had derived their political power as successful newspaper publishers.  It is quite ironic, then, that one of these men would reach the highest office in the land on the same night that the nascent radio broadcasting business began its takedown of the newspaper industry.

Nowhere is this takedown more apparent than locally, where radio has become, by far, the advertising medium with the largest reach among Delaware Valley consumers.

"Radio advertising has been instrumental in our growth," says Kristin Smith the controller for Hatfield, Pennsylvania based World Wide Stereo. The iconic Delaware Valley retailer has been selling every imaginable type of home electronics from car stereos to home theatres since 1979.

"Many competitors have come and gone during our 40 years," adds Emily Cole, the company's Director of Marketing. She and Ms. Smith rattle off a long list of names including Tweeter, Silo, HiFi House, Circuit City, and Sixth Avenue.

"Radio has been the one advertising medium we have been using consistently all this time," says Ms. Smith.

Radio is hard-baked into the DNA of World Wide Stereo.  The company's founder and CEO, Bob Cole, first became hooked on electronics as a kid growing up in the 1950s. He remembers building his own radio with some copper wire and the wooden-spool from some sewing thread.

Suppose you woke up one morning and found a 100-year-old machine in your basement. You soon discovered that every time you put a dime in the machine, one dollar came out.  How many dimes would you drop in that machine?

Good news for Delaware Valley small business owners: such a machine exists and you probably have one in your car, at work, at home, even on your phone. It's called local radio.

Over the past few years, Nielsen has conducted over 20 studies to determine what type of return-on-investment (ROI) a business can expect from radio advertising.  Although the results varied by industry, the average company generated $100 in sales for ever $10 invested.  Turning dimes into dollars.

Delaware Valley consumers spend $1.3 billion on fine jewelry every year.  Angelo Breaux, President of Family & Co. Jewelry, invests in advertising on Philadelphia radio stations every week to successfully claim a large share of those dollars.

Mr. Breaux is the third generation of jewelers in his family.  His Grandfather started the business in 1937 from a tiny store-front in South Philadelphia.  In 1971, his parents moved the store to a 1600 square foot store in the Plaza 70 Shopping Center in Marlton, New Jersey.

Fifteen years ago, Mr. Breaux expanded the original Marlton store to 3200 square feet. Today, Family & Co. remains a family-owned, single location business selling brand name jewelry. 

"The customers at my Grandfather's original store in South Philly pretty much came from the neighborhood. Today, with the help of our commercials on Philadelphia radio, we draw customers from Pennsylvania, New Jersey, and Delaware."

Mr. Breaux's decision to invest his marketing dollars in radio is supported by market research. According to Nielsen, Philadelphia radio reaches significantly more fine jewelry buyers than are reached by local TV, newspapers, or audio streaming sites like Pandora & Spotify.

If you were one of the 3,830,493 adults who tuned-in to a Philadelphia radio station last week, it is likely you heard a commercial for Indeed.  That's because, last week, Indeed, the world's largest online job site was also one of radio's biggest advertisers.

There is a good reason Indeed invested so heavily in radio advertising. The site has far more job openings posted than there are job-hunters to fill them. 

This is not unlike the predicament of Delaware Valley small business owners who are also having difficulty finding and hiring qualified candidates. These employee-strapped businesses can learn something from Indeed.

What Indeed has figured out is that there are not enough unemployed people or disgruntled white-collar workers searching for jobs. So, the company is looking to attract what human resource experts call the 'passive job seekers'.

It turns out that advertising on Philadelphia radio is the best way for any business owner to recruit, hire, and retain passive, white-collar job seekers.

You've done the research. You now know that by every measure, radio advertising is the most effective way for your Delaware Valley small business to market its goods and services.

You have learned, for instance, 3,830,493 consumers regularly tune-in to their favorite Philadelphia radio stations.  That's more than 90% of all adults.

You've also learned that, on average, adults spend almost two hours per day listening to Philadelphia radio.

If you dug deep enough, then you know radio advertising delivers, on average, a $10 lift in sales for every $1 invested. This would be a remarkable return-on-investment for any Delaware Valley small business owner.

What you may not have figured out, however, is what is the best time of day to advertise on Philadelphia radio?