Dragonballs cannot be searched for all the time. There is a point where we will tell everyone that they are no longer stone and can be searched for. To search for them, e-mail me (Vegeta) a story on how you got the dragonball. You can only find one DB per story, and if the story is bad or not good enough to earn a DB, you won't get one. However, you will gain exp either way.
Earth Dragonballs
Grants _ wishes
7 Dragonballs still scattered across Earth
0 Dragonballs found
Currently cannot be searched for
Namek Dragonballs
Grants _ wishes (must know Namek Language or have someone with you that knows it)