Here's an initial list of programs for teenagers. Do you have any others to add?

Camp Brainy Bunch (Cambridge / Somerville), offered by Education Unlimited, offers academic summer camps and precollege summer programs that range from one to eight weeks in duration for students up to grade 12. The camps cover various subjects from public speaking to acting to essay writing to SAT prep. Camps in Massachusetts are held at Tufts University and at MIT.

Drumlin Farm (Lincoln and Sudbury) offers various programs for teens to see and learn more about birding etiquette, form friendships, increase environmental awareness, enjoy a great time outdoors with fellow birders, and develop an appreciation for the wide variety of bird habitats and species in Massachusetts. Advanced registration is required. There are also volunteer opportunities for kids aged 15+. Volunteers and internships help the farm by educating visitors about nature and farming, handing out recipe cards, setting up tastings, selling vegetables, assisting with admissions and parking, doing field chores such as mulching, weeding and harvesting, and assisting teacher-naturalists with exploration activities for young children. For more information about volunteer programs, call 781.259.2200.

New York Film Academy (Cambridge) offers various summer camp programs for kids aged 10-17. The New York Film Academy is one of the premier summer film, acting, visual and performing arts camps. Students work with state-of-the-art equipment and facilities and receive hands-on instruction from award-winning faculty. Areas of study include filmmaking, acting, musical theatre, photography, screenwriting, 3D animation, game design, documentary film, graphic design, music video, and broadcast journalism. The camp is held at Harvard University.

School of the Museum of Fine Arts (Somerville - Tufts) offers continuing education studio art courses and workshops for artists of all ages and backgrounds. There is a variety of interests covered, from ceramics, digital media and drawing, to graphic design, sculpture and photography, among others. Students entering grades 10-12 are eligible to apply for pre-college sessions that are held during July-August.