Two main points:
1. You need to think through how to get to some high quality prospects easily.
You certainly could advertise on Craigslist. Classified Ads in local offline newspapers are often very effective.
You may also find some local publications that are already listing businesses for sale. That can help.
And sending a sales letter to related local businesses as Lance suggested is a brilliant idea (if you do this be sure and tell them in the sales letter about the possibility of making a substantial second income from the clients they already have).
2. You need to think through your marketing process.
You'll probably have to use
a. A lead generating ad that leads to
b. You talking to the prospect on the phone and sending out your sales letter then
c. Talking to your hot prospects in person at the business.
The most important key here is to think about what a potential buyer is looking for and what they're wary about.
They'll want proof of income.
They'll also want some kind of proof of what components of the business are owned by you now and to be sure there are no hidden debts, financing etc.
Finally they'll probably want to know what skill is required, what kind of training you're offering and what kind of time input is required.
If you put all that in your sales letter and you have your proof ready when your prospects arrive to see you in person you should do alright.
I'd make one final point.
Most people think about how to sell their business around the time when they're ready to sell.
But if you want to get the maximum price when you sell your business you should really be thinking about that before you even buy or set up a business.
Check out Harvey Zemmel's free report here...
The 7 Most Common Mistakes Business Owners Make Selling Their Business
Kindest regards,
Andrew Cavanagh