Judith: This isn't a tip, but a request instead. For students, of course, learning these strategies and tricks for searching is easier with examples from specific collections. For our teachers, using the mini-units would be oh so handy in our American History classes for those examples to be chronologically ordered. At the moment we're fighting the Revolution; we're writing the Constitution about 10 days from now; and we're fixing to buy some land west of the Miss. next month. We'll jump on any search exercises that tie into these early units. Thanks, George West