It seems ludicrous to head into a festival these days and not have a website or blog for your film in advance. It seems silly not to have that web address built into you film end credits. It doesn’t have to be a final or even a polished site, but there should be something. How else will you tell your audience how they can participate in the experience or even see your film?
Beyond a website or a blog, filmmakers should do the simple outreach chores. Build a Wiki page for your film. Create a MySpace and/or Facebook profile for your film. Make sure all the info is in IMDB.
And don’t forget images. Post some stills. Hell, post some clips up on YouTube. For years, filmmakers have been told to make presskits, but why not do the things that let the audience find them directly? Why wait for the journalists; they have all been fired!