I'd run an ad in a newspaper if I were you, or post something on a visible website on the internet. Try and think of where you'd go to find a service. For example: If you needed a professinal service to mow your lawn, where would you look? Me personally, I'm not going to wait until somebody hands me a flyer... I want someone to mow my lawn now! So... I'm most likely to check the internet, check the yellow pages (take a look in your local yellow pages for flight schools... I'll bet you'll be amazed at small number of flight schools that advertise--- it's way too expensive for most schools), or in the newspaper. My advice to you: think of a hobby that you're interested in, something like playing the guitar or learning a language. Once you figure out what you want to 'learn', go ahead and start finding people who you'd most likely call to get those lessons. Wherever it is that those people are advertising is a good place to start... if it was effective enough for you to find somebody to teach you Italian (or whatever your language or hobby of choice), chances are it'll also be a good place for you to start advertising.