The in-site currency we use on here is called Moon Shards, which you can use to buy numerous things from the general store and member shops. The ways you can gain Moon Shards are;
•Inviting new members to the site (10)
•Winning contests or events (Depends on the reward)
•Becoming character or member of the month (50)
•Opening a shop (Depends)
•Helping out around the site (10-20)
•Whenever Paco feels generous (Depends on how generous he feels).