Web promotion for new web sire

I have designed a new dating website for traveling community. I am looking for the following. 1. Email Lists of Rent-a-car companies Travel websites like Travelocity, Hotels. (Paid or unpaid) 2. Managing the web groups with Myspace, LinkedIn and Craigslist 3. Posting the ads on Craigslist periodically. I want someone who has knowledge of where to get this data from and has done the point 2 and 3. I am already running an email campaign for this sire; the above will be subsequent marketing efforts.