From YALSA: YALSA (Young Adult Library Service Association) has new National Teen Space Guidelines for Public Libraries. Download them for free at: http://www.ala.org/yalsa/guidelines/teenspaces.
This is a tool for evaluating a public library's overall level of success in providing physical and virtual space dedicated to teens, aged 12-18. Potential users of these national guidelines include library administrators, library trustees, teen services librarians, community members and job-seekers hoping to assess a library's commitment to teen services.
Note from Leah: Remember IFLS libraries: if you need help brainstorming about your teen area or services, please contact me!