Word of mouth marketing strategy

I met someone last night with a translation business. During the conversation I asked, "How do you get your business?"

She replied "we get 50% from the internet." I asked about strategy and she explained in some detail and said that they used professional help.

I asked about the other half and she said it was word of mouth. I asked about the strategy for that and she didn't have one, so half of their new business was 'accidental'.

What's your word of mouth strategy?

Good Networking!
Dave Clarke