Tech Talk Tuesdays: Groupon

This weeks Tech Talk Subject is the popular "deal-0f-the-day" Web site known as Groupon. Here's a link where you can research this topic further:

Groupon (via Wikipedia.org)

Questions for discussion: Do you use Groupon? What other "deal-of-the-day" Web sites have you heard about? Do you use any of those? Sound off in the comments section.