What's the preferred way to offer "free stuff"?

When I lived in NYC, I'd use Craigslist to give away stuff my kids outgrew. Put something under "free stuff" and generally someone would come pick it up in 24-48 hours.

I tried doing the same here (Poughkeepsie) and... not even one response. Which seemed weird! Is this a "hey, you're gonna have to get a facebook account" sort of situation?

(And I'm not talking about trash. Right now, for example, I have barely used sparring gear from my kid's three years in taekwondo. Some enterprising 8 year old wants this padding for fighting with their brother.)

Thanks in advance for any advice!