NBC
Msnbc: Al Qaida Timeline: Plots and Attacks
Chronological timeline of terror plots and attacks associated with Al-Qaida beginning in 1992 through 2005 features detailed facts and public statements.
New York Times
New York Times: The Status of Al Qaeda's Leaders
Studies the different Al-Qaeda terrorists that are caught, killed, or still at large as of September, 2002. Gives a brief description of the terrorists.
Siteseen
Siteseen: American Historama: World Trade Center Bombing
Article contains interesting facts and information on the 1993 World Trade Center Bombing, the beginning of a string of threats and terror attacks against the United States made by both foreign and domestic terrorists.