American Brain Tumor Association
- Supports patients and families; encourages research. Primer of brain tumors, dictionary of medical terms, guide on living with tumors, treatment information, advice on clinical trials, newsletter, conference listings, and other resources.
- http://www.abta.org/

Headstrong
- The Brain and Spine Foundation of the UK gives children information about brain tumors including treatment, coping and links.
- http://www.headstrongkids.org.uk

WHO Classification of Tumors Affecting the Central Nervous System
- The World Health Organization classification of tumors affecting the central nervous system.
- http://neurosurgery.mgh.harvard.edu/newwhobt.htm

Center for Gamma Knife Radiosurgery
- Provides information about the treatment of brain tumors and other neurological conditions using this technique.
- http://www.gammaknifecenter.com/general.htm

BUPA: Brain Tumours
- Fact sheet from this UK entity which addresses causes, symptoms and treatment of brain tumours. Available for download in PDF format.
- http://hcd2.bupa.co.uk/fact_sheets/mosby_factsheets/brain_tumours.html

Brainlife.org
- Collection of medical literature references about brain tumors including experimental treatments and alternative therapies.
- http://www.brainlife.org

A Primer of Brain Tumors
- Reference manual for patients covers brain anatomy and the terminology, diagnosis, and treatment of benign and malignant brain tumors.
- http://neurosurgery.mgh.harvard.edu/abta/primer.htm

Meningioma Support and Information
- Forums, chats and collected web resources on meningiomas, which are brain tumors that arise contiguously to the meninges.
- http://meningioma.intranets.com