It's funny, before I started online and before I started playing poker, I was in advertising sales, yellow page ads to be exact. When I first started I though I would just walk into a business and WOW them with my practiced pitch and walk out with the CASH.
Over time I learned my best deals were almost always a product of casual conversations at the bar after work or by meeting people in other social situations - pickup basketball, softball leagues, etc.
My experience in sales really helped me when I ran my poker biz. My money came from playing poker, having a good time, and meeting people. Only then would I tell them about my site.
I'm not saying fliers are a bad idea...I'm just saying after you've spent some time in the real world of sales you understand why they aren't very effective.