Effective Marketing Plan for US + UK + Canada

We are looking for someone good at marketing in United States, mainly in internet marketing. Our project is advertising online system (pay per post network, if you know what it means and how it works, you are the right person). We started at the end of last year, but the management live in Europe and do not know USA market at all. So prepare us tailored marketing plan HOW and WHERE we should start, WHERE is good for our target customers place advertisements and we will be happy, if you can help us with that. Everything STEP BY STEP with priorities and suggested budget and expected revenues. We do not have problems to get bloggers, but we have problems with gettings plenty of advertisers. Now the status is: - we are running pay per post project website in 7 languages - we have more than 5000 blogs available for advertisers - we have a few dozens of advertisers, but we need much more - thousands - we have support/helpdesk team through chat, phone (told free number), email (ticket system) - we are running PPC in Google and Adwords content network, and Microsoft adCenter PPC - we are doing SEO of course; we are doing newsletters several times per week PLEASE WRITE EXACTLY WHAT CAN YOU DO AND WHAT ARE YOUR EXPERIENCES. WE ARE LOOKING FOR MARKETING KILLER PLAN WITH EASY EXECUTION STEPS.