Farmville" is a popular Facebook game that allows you to create your own character and build a farm. A common goal is to build a villa, which is the main status symbol of the game, but you'll need a million coins to do it. The faster you earn, the quicker you can get the villa.
Instructions:
1) Plant raspberries if you can come back and harvest them every two hours. You have to replant and reharvest continuously or else your crops will die.
2) Plant strawberries if you can only check every four hours. They cost little to plant and produce a good amount of coins. You also earn experience.
3) Plant peas if you can't harvest on a regular basis. Peas are inexpensive crops that provide a high yield. You also might try yellow melons and watermelons and yellow melons, but be warned that they take four days. On the positive side, they also cost little to plant and produce good yields.
Source: eHow