find your audience
Who is the core fanbase for your film?
Where do they hang out?
How can you access groups of them?
Who are the leaders or tastemakers?
Where can you screen your film?
Workbook Project Theatrical Mapping http://workbookproject.com/19/
PBS Art House Theatre Map http://www.pbs.org/independentlens/yourlens/arthousetheaters/
Film Club (find film societies) http://www.filmclub.com/film_festivals/action/?go=club_search
Crowd Controls http://crowdcontrols.cc/about/

Open Indie http://openindie.com/films
engage your audience
Make your screening awesome
Offer to attend screening for cost of travel.  Encourage local groups to get a sponsor for this purpose.
Find local people in the area who could do a Q&A about themes in the film
Do a Skype/iChat Q&A
Find a business in the area who will take ticket stubs of your movie in exchange for a good or service, such as a free drink at a local bar or cafe
Find good places to hang out near the screening and coordinate a meetup before or after the screening
Create special content just for screenings
connect with the audience
listings
http://going.com
http://upcoming.yahoo.com
http://eventful.com/

Facebook
twitter
postcards
http://www.nextdayflyers.com
http://www.overnightprints.com/
http://www.meetup.com/
http://www.tangler.com/
http://www.whostalkin.com/
http://www.massify.com/
http://brightkite.com/wall
http://www.microvision.com/showwx/
create online forums
THE MAIN EVENT
network with other filmmakers