Make yourself some business cards and start handing them out! Drop them off at high traffic businesses - most should allow you to do so.
Hire some bird dogs to work for you. A bird dog is someone who will go out and do the dirty work and find you a great house to buy. They will do all the research to find potential houses, they might do marketing for you and they will deal with the sellers for you. You will pay them $500 (or whatever you decide) for their work if a property they refer to you ends up in a deal with you buying the house, or you could instead pay them $10 or $20 for any lead. It's up to you and you can be flexible. You want to build relationships in your real estate career - your birddog may one day become a partner in a profitable Joint Venture deal, so treat them right!
Just make sure you check over the laws in your state about this (paying for information/leads)