Catholic.net has put together this memorial site for Mother Teresa. Visit and you'll find a drawing of her, a biography, and some links. It's a good place to start your online research.
When Time magazine put together its list of the 100 most important people of the past century, Mother Teresa was on it. This page from Time has a photo and an essay explaining their choice, along with some links.
Mother Teresa won the Nobel Peace Prize in 1979. Here is the transcript of her Nobel Lecture, along with links to a sound recording in RealAudio, an image of her Swedish Nobel stamp, and more.
Beliefnet.com posted this "on-the-scene report from Mother Teresa's beatification ceremony" entitled "Sunshine for a Saint." Besides the report, you'll find multimedia links to audio about the poor and video about her ministry in Calcutta.