America's Day Of Terror from the BBC has a lot of excellent information. In fact, it might have too much for English Language Learners, so you might want to point students to particular sections of the site.
"In remembrance of a day that changed our world forever, SnagFilms proudly present six extraordinary films below, each offering unique perspectives on the tragic events of September 11, 2001 and their aftermath. These documentaries remind us how powerfully the medium of film can capture our darkest days while also exalting the perseverance of the human spirit and our collective ability to endure and to heal. We are especially honored to bring the critically acclaimed 7 Days in September to an online audience for the first time. "
"What are teachers doing to help their students understand the attacks that took place September 11, 2001? Education World has culled from the Web and listservs a list of possible resources. Included: Watch in the days ahead as we add new resources!"
What do you think Anne Frank would say about all the anti-Muslim sentiments being expressed in opposition to the proposed New York mosque (and mosques in other states, too)? Anya Cordell , the recipient of the 2010 Spirit of Anne Frank Award, has some ideas. Read them at THEN WHAT? The Consequences of Lighting the Anti-Muslim Fuse.
"The Mosque Controversy" seems like a decent interactive from The Wall Street Journal. It is, of course, about the proposed mosque to be built near the former World Trade Center in New York City.
"Education World offers five lessons to help teachers commemorate the anniversary of the September 11, 2001, attack on the United States. These lessons will keep alive the spirit of patriotism and tolerance stimulated by the events of 9/11. Included: Students make a huge flag mural for your school or a proverb book for your classroom library, write letters to fire fighters in their community, read aloud books that model tolerance, raise money for Afghan children, more!"