Very nice thread !
I'm planning to use the referral system too and spread the word about.
Moreover, i'd like to add a strategy, i came up with yesterday.
3 steps to catch fishes :
1) Mailing with a promotion catchy enough to get some answers
2) Phoning the same person and be discrete on who you really are, you mention it once.
3) Go into each ones stores, offices to sell your product they already know about.
OKay that's classic, but the finest is to take 10 minutes to make a quick guide of how people refuse your offer. It is always the same universal shit :
"I don't have time"
"It is too expensive"
"It is my wife who decide"
"I don't need it"
Then you put some answers that you test yourself
"DOn't you have time to win money ?"
"Forget about the price, don't you think you'll benefit from our service ?"
"Hehe, i understand, wifes like deciding. Although, you can make her a present in doing the best deal ever"
"Oh, don't you need to win money ?"
Some people will think these sentences aren't working, but i had a "chance" to work in a callcenter so i was able to spot generic "way to say no" and try these answers out. They worked quite well in my langage, i was the sales leader in my old job among 60 professional seller and i was just an apprentice. Once, i've tested it everything i made a guide with the sentence in it, that ppl who didn't care about selling loved it very very much.
The purpose isn't to close the deal in one shot sentence but to buy you some time in opening a discussion and force them to listen what you have to say
This idea is not from me, it came from a movie with Vin Diesel talking about stock option. (boiler room ?)
My 2 cents