My begining in PPC

I started getting interested in ppc advertising when everyone started talking about how well google worked for them.  My first tries were horrible, I ran into a few problems;

1. I was paying way too much to advertise
2. I was advertising unreliable affiliate programs
3. I was advertising programs that were not getting enough interested customers

There were quite a few other problems I faced as well but those were the ones that frustrated me the most.  I began joining better programs like clickbank, marketleverage, etc... and I began using their resources much wiser.  

When I first began I was spending $3.00 for every $0.35 - $0.50 I was making.  With a lot of experience I am now in profit making two to three dollars for every fifty cents that I spend.  This is not always consistent, there are highs and lows that you come across especially when trying new programs.