Naples, Fla.—MediaBrains, which provides b-to-b online directory advertising, Tuesday announced a partnership with the Society of Plastics Engineers, an international group representing plastics industry professionals. It is MediaBrains’ first partnership with an industry trade association. MediaBrains will build and manage SPE’s Industry Directory, a buyer’s guide for the plastics industry. The directory will be accessible through a link on the SPE’s Web site, www.4spe.org. SPE publishes Plastics Engineering, which targets professionals who work in automotive, chemicals, consumer products, electronics, machinery and packaging markets.