Build.com, (Middletown, NY) an e-commerce and e-marketing company, has launched PlumbingHVAC.com, a new Internet venture that, according to Daniel Auer, Build.com president, “is destined to be the industry’s portal, the place where the industry meets, the default home page for industry participants.” The site features a continuously updated manufacturers directory, which provides links to manufacturer websites and their wholesaler listings along with a manufacturers rep directory.