I wouldn't place word of mouth as an option simply because that's how most successful businesses primarily market. It's the other types that are of interest.
For us it's networking - Chamber of Commerce, but not in a typical networking sense.
News letters as of right now but we are starting to send out more post cards with good results.
I'm finding that the more time and effort I put into the Chamber of Commerce the more I'm getting out of it. I'm hopeing the chamber will be the best for us one day.
My door hangers work great. It is on word so I can't post it. I think it is where I live. The people love door hangers here. I can count on a 3% return (except in winter). We aren't getting a bunch out right now. During summer my mother in law tries to get out 500-800 each week.