The second is internal gamification, which, as you might guess, is about applications of gamification to people who are in your company already. Employees typically. I also put here crowdsourcing. Crowdsourcing, we'll talk more about later, but it's a process of reatching out to lots and lots of people. And either breaking up a task, into very small pieces, for example. Trying to find a new star on very detailed, complex NASA star charts by giving each person a little teeny piece of it to look over. Or crowd sourcing involves situations where there's a challenge that's sent out to many people and anyone who wants to can respond to the challenge. For example, trying to win a prize that's put out as a general challenge to whoever wants to respond. Crowdsourcing is not internal in the sense that it's people who work for open company, but it's internal in the sense of within a community. The organization that launches the challenge needs to get lots of people. To actively participate, and crowd sourcing either may involve no monetary reward at all or it may involve people who aren't part of your company to begin with and therefore even if there is a reward finding them and getting them to submit and participate requires some effort. Gamification can provide that motivation. As in the other cases, gamification can encourage people to participate when they otherwise might not.