[masalachai]

Good list but curious why you advise against doing conferences and conventions. The obvious benefit in my mind is advertising, potential clients, and most importantly, advertisable "credibility" on your website in the form of "Speaker at X conf".

I'm not in the consulting business, however, and the list of benefits is speculative.

[tptacek]

Don't, like, set up a booth. By all means give talks.

[wglb]

Conference booth presence can be an enormous time and resource cost. Giving talks is far better marketing.