Pardon me, do you have any Grey Groupon?

Have you ever heard of Posie's Cafe?  Their story is like a mini-case study in retail marketing.  How not to use Groupon.

Level Up!

I was thinking about games and what makes a game fun and addictive. The answer, is leveling up.

This is especially true for flash games on the Internet. The games with a lot of achievements, level ups, upgrades, badges, perks and bonuses are the ones people play online. Even games with boring gameplay, like tower defense, become fun when you can upgrade your weapons.