If I am going to advertise on facebook. Which will likely gain me better results: per click or per impression?

[G A]

I am brand new to the world of online advertising. I have a couple of businesses I have started up essentially as an independent contractor. These are two completely separate businesses, utilising different skill sets. I have a website for one of these businesses so far, and I believe the best way to grow this business at this time is through advertising. (The other will probably grow better via word-of-mouth.)

I have chosen to advertise on facebook because I believe a lot of people who will require my skills are already on that web site. My choices seem to be among the following: pay per click, or pay per (thousand) impressions.

Can people share with me their experience using one or both of those strategies? At this time, my gut instinct tells me I would get more bang for my buck paying for impressions rather than per click, but as I said, I am brand new to the world of online advertising.
Austin, your answer is amusing, but it does not answer my question. I'm looking for people who have some understanding of online advertising, though your gorilla marketing campaign might work if I actually had access to those resources.