Oscar sent me a great email on Guy Kawasaki's blogsite on entrepreneurship and networking (see below in comments)
If you cruise through Guy's blog, you'll see oodles of hints, tips and links to other great people and resources.
If you want great word of mouth, be generous in your mentorship and your connections. Watch the hits on Guy's blogsite and you'll see he attracts huge success with his largesse.
Another example of this generosity is the assistance I've received from an Ellusive Fish. Rob shot me an email after he reviewed WOMBLOG and gave me some suggestions on linking.
Hide your knowledge and release it only when the purchase order is written, you'll be one of the crowd.
Share your wisdom and you'll gain that most valued description: "he's a good guy" or
"she's a nice person"