In gamification there is the PBL (points, Badges and Leader-boards) method. These are elements of games, but are not games in and of themselves.
Gamification is not about adding game elements to something, but it is about using game elements to make something more fun (I'm actually studying game design and gamification).
For example: If all you did was just give points each time someone logged onto a grid, then although points are a game element, this would not be gamification because there is no real element of fun involved.
Designing something to be fun is actually a complex and can be a difficult task to consistently do well. It requires knowledge of psychology, aesthetics philosophy and many other subjects.
There is also a danger with gamification where you can gameify something and this can reduce people's enjoyment of the activity (especially when it involves creative activities). It can convert people's enjoyment of an activity from being self motivated to that of achieving the rewards offered, and then when the rewards stop (or become mundane) then people can stop enjoying what they once enjoyed.
So, when thinking of offering rewards when gameifying something you should ask yourself:
How does this add fun to the activity?
Does this encourage what I want to it?
Can this negatively effect the players in some way?