Some techniques I have liked from other people:
Participate in a larger community. If you play music, play covers from artists in your community. Comment on their blogs. Recommend them to your fans. If a fan covers something of yours, makes fan art, reviews you, or references you, reward them by showing it to the rest of your fans.
Agreed with the Anonymous Coward - Establish some consistent means of communication with your fans, especially an open one. If you have comments, respond when appropriate. While responding to every e-mail is admirable, it does very little to build up the community as a whole. Some people do post appropriate e-mails and respond publicly. Forums and comments are still better because community leaders can help answer questions and provide a connection to the artist.
This feels right on. I've always disagreed with Stallman's restrictions in the GPL.
In other words,
1.) Its better for your work to get out there, by whatever means possible, even if it means somebody has to pay for it or use DRM. Obscurity will always be a bigger problem than abuse.
2.) People will learn better by example than by force. Allowing Netflix to distribute the film will teach them to remove it better than a boycott. Some people will never learn, but that is another issue.