Help me with Internet Marketing, Social marketing, PR, Advertising, Market places.

We are a US manufacturer of plumbing products designed for the commercial and institutional markets. 10% of our sales are generated by residential customers. Our product audience are: 1. End user. Managers, owners, and/or operators, facility managers and supervisors of the following venues: Restaurant. Hotel. Office buildings. Sports arenas. Clinics and hospitals. Schools and educational facilities. Parks and recreation departments. Transportation departments. 2. Specifiers who are involved in design and construction of new building (same type of buildings mentioned in item 1 above). 3. Professional plumbing service, repair, maintenance, and installation of plumbing and specialties type products (specialties products include soap dispensers, hand dryers, grab bars, etc...). 4. Professional wholesalers and distributors of plumbing and specialties type products (as mentioned in item 3 above). In addition to our company website, we operate 2 other e-commerce sites focused on selling our products on the web. Our websites enjoy good SEO, and pay-per-click campaign management. No social marketing or other type of target-specific marketing. The right partner (or possibly many partners each specializing in the following: A. Has done successful online marketing outside of the standard ppc and SEO optimization work, and can provide evidence. B. Has done successful social marketing, and can provide evidence. C. Has built and maintained market places on many networks, such as Amazon, Ebay, and other market places targeting construction products C. Has done successful email marketing, and can provide evidence. D. Has done successful PR work, and can provide evidence. E. Has done targeted advertising on the web, such as working with industry specific e-zines, publications, and or websites, and can provide evidence.