Northern Secondary School
- An unofficial, student-run site for Northern Secondary School with alumni information, bulletins, clubs and school organizations.
- http://northernsecondary.com/

Celtic Learning and Travel Services
- Conducts high school credit courses in Ireland for students during the month of July, with credits recognized by the Ontario Ministry of Education. Co-ed, non-denominational and open to students of any nationality.
- http://www.celticsummer.com/

Oakwood Collegiate Institute
- Includes a profile of the school and clubs information.
- http://schools.tdsb.on.ca/OakwoodCI/

Western Technical and Commercial School
- Offers academic, technological, business, arts and science courses to students on Toronto's west side. Provides information from each of its departments, upcoming events and administrative details.
- http://www.wtcs.ca/

Sir Oliver Mowat Collegiate Institute
- Unofficial site where notices are posted in to contact former students and staff.
- http://www.earthsciences.ca/mowat/

East York Collegiate Institute
- Official school website, with information about the school's history, events, location, departments and students' art galleries.
- http://schools.tdsb.on.ca/eastyork/

East York Collegiate Institute Student Government
- Student government site of a public secondary school in east-central Toronto, with details about its history, alumni, programs and activities.
- http://eyci.ca/

Marc Garneau Collegiate Institute
- Describes this school located in the Don Mills area. Includes information about courses offered, profiles of the school and teachers, and a student area.
- http://schools.tdsb.on.ca/marcgarneau/

George Harvey Collegiate Institute
- Secondary school describes its courses and student services resources, including its dress code.
- http://www.georgeharveycollegiate.ca/

Bishop Allen Academy
- Secondary School in Etobicoke providing school information including details about departments, services, courses, extracurricular activities, news and a calendar of events.
- http://www.bishopallen.ca/

Danforth Collegiate & Technical Institute
- Modern high-tech facilities, and a wide-range of academic, arts, and technical courses: from construction to computers to cosmetology; from painting to photography to printmaking.
- http://schools.tdsb.on.ca/danforthcti/intro.html

Cedarbrae Collegiate Institute
- A high school in the Scarborough region.
- http://schools.tdsb.on.ca/cedarbrae/

Sir John A. Macdonald Collegiate Institute
- Secondary school in the Scarborough Region of Toronto.
- http://macdonald.egate.net/

Lester B. Pearson Collegiate Institute
- A high school on Tapscott Rd. in Agincourt area.
- http://schools.tdsb.on.ca/lesterbpearson/

Jarvis Collegiate
- A high school located downtown. Founded in 1807 during the frontier days of Upper Canada. Details about the school and its history.
- http://schools.tdsb.on.ca/jarvisci/

Inglenook Community High School
- Offer advanced level programs from Gr. 11 to OAC with a few Gr. 10 courses.
- http://schools.tdsb.on.ca/inglenook/

Georges Vanier Secondary School
- A public grade 10 to OAC secondary school located in Don Mills, with information about special projects and events, administration and student services.
- http://schools.tdsb.on.ca/georgesvanier/

Albert Campbell Collegiate Institute
- A secondary school located in Scarborough.
- http://schools.tdsb.on.ca/albertcampbell/