I will promote your product/Apps and create channel for all of what you required - Facebook , Google Plus, Pinterest, Twitter, Linkedin, MYSPACE, TUMBLR, Slide Share, Stumble Upon, Friend Feed, Delicious, and more as of my knowledge.
I looked through the requirements that you mentioned and they match very well my skill areas, proficiency, and experience. I think that my experience would be a good fit for this opportunity.