Hi Larry!

Depending on your desired draw (do you think you'll be able to bring in dancers a plane-ride away?), you may want to also mail a few out to other large dance communities further away. Also, don't send out too many flyers honestly; it's a waste of paper to send out more than a couple dozen or so. Fewer and fewer people are actively taking them (especially given that you can simply take a picture with your phone). Most generally go right into the recycling after a few months.

Facebook currently is your best bet for advertising to dancers. Post in out of town dance groups' Facebook Groups. I would also consider, if you have some decent graphic design, using sponsored ads on facebook. We use them and are able to get our weekends on peoples' calendars at a rate of probably about $.50-$1/event response (our main weekend sees around 300 event responses, most of which translate into actual attendance). This requires a bit of social media presence in the first place, though (e.g., having a Facebook Page for your local dance or weekend) but is to me far more effective than flyers.

Finally, make sure your site is on http://www.contradancelinks.org. Not a ton of people use it, but it is free and just requires a quick email to the webmaster to post. Free and quick is good.

Best,