Groupon. What is this place?

So, a friend sent me a link to this deal for Wink Threading Salon on Groupon. I love Wink. Now onto Groupon. If you haven’t checked it out, I suggest you do. I must admit I’m a newbie to this, so I can’t explain all the details to you, but, basically, Groupon is a site that offers daily deals on local businesses. Former deals have included $149 for a $229 skydive in Dallas, $85 for $250 eyelash extensions at Lash Studio, and $45 for $125 worth of hair services at Dear Clark. Crazy, right? Please tell me I’m not the last person on Earth to find out about Groupon.