Britannica School:
Tibet
Dalai Lama
Map
Student Resource Center Junior:
Gale Encyclopedia of World History: Governments: Tibet
Gale Encyclopedia of World History: Governments: China
Tibet: Struggle for Independence
Editorial: Desperation in Tibet (NY Times)
News Article: Chinese Propaganda on Social Media
Primary Source: Dalai Lama's 1989 Nobel Speech
Map
NBC Learn (you'll need headphones):
In-Depth Look
2008 Escalation
Other sites:
BBC News Q&A
Free Tibet Timeline (think about possible bias)