ArtSelect, owned by Florida-based a21 Group, has launched PostersEtc.com. The new poster and dorm decorating Web site targets teens, college students and young professionals. The company describes it as a site with “a little more attitude” than its flagship product ArtSelect, which offers custom-framed prints and wall décor. PostersEtc carries over 50,000 images that reflect current fads and trends across varied categories, ranging from music and TV to black-and-white photography and vintage art.