How do you promote and get ticket sales?

[understandingsound]

I recently became a promoter for a local venue and I am looking to sell a certain amount of tickets. I don't have a huge list of friends interested in the venue so my friends/family is limited.

Any tips for promoting this event and buying tickets from specifically me versus another promoter?
I have a early bird discount available already but I am competing among other people in the area.

One girl that promotes says she attaches business cards to the flyer (with contact info) and gets a lot of business that way. Should I do something similar? Any other ideas maybe from experience (other than facebook) for getting ticket sales?

Thank you.
Also - what would be the best way for people to contact me? Email, phone, facebook (all)? A lot of people buy tickets online - other than the discount, what would make it more alluring for them to buy from me?