I've always found wise (and sometimes not so wise) quotes really useful, both within the classroom with students and as a way of introducing a topic when writing materials. I've used lots of different websites to find quotes over the years, but iWise is certainly about to become my new favourite as it seems to have taken wise quotes to a new level.
"Elizabeth Birr Moje, professor of Literacy, Language, and Culture in Educational Studies at the University of Michigan, and Sunil Iyengar, director of Research and Analysis at the National Endowment for the Arts discuss the new literacy issues presented by computers and the internet."