Use craigslist to find people buying boats. Post an ad in boats for sale.
Focus less on racing and more on sailing and fun. Grill out after events and hang out.
Have a winter party to keep people in touch.
Create away events where you all go to some nice place that is not your usual place to sail.
Find someone with a pontoon boat so that non sailing spouses can hang out without the hobie experience (assuming they don't want it).
Set up a fleet website
Our dues are optional and are $25.
Be helpful to people new to the sport. Help them learn to set up their boats and sail.