I think should be more... google adsense banned.. and banned from google search at the same time... now that would totally sux lol
CPA, EPN, Amazon .... scripts that allow me to show targeted ads. Other netwoks that supply data feeds ... shareasale and other independent merchants. This is why I never ever rely on one program to earn income. They pull the plug and you are in full panic mode. If you have several programs that you work with then it is just an inconvenience.