Stacks and Queues

Here is a Java applet that simulates a circular implementation of a queue, it helps visualize what happens:

http://www.cosc.canterbury.ac.nz/mukundan/dsal/CQueueAppl.html

Here is also a link that explains a few real-world applications of stacks:

http://jcsites.juniata.edu/faculty/kruse/cs240/stackapps.htm

Enjoy the snow!