The Facebook application that has swept the nation.
Personally, I'm aware of the annoyance and confusion it causes for all Facebook users, yet am still addicted. "Who gives a shit if your pineapples are ready to be harvested!"
I'm a sucker for simulation and role playing games. Anything. SimFarm, Insanaquarium, The Sims (all consoles, all versions, all expansion packs), World of Warcraft, Left 4 Dead. Love it. Live for it. Who knows why? I suppose in a world where little can be controlled, the ability to control every aspect and every result of an environment or situation is empowering.
This is where Farmville comes in. I can chose what crops to plant where, in what pattern, at what time. It's also somewhat realistic, in terms of having to harvest your crops within a certain amount of time before they wilt and die.
The game teaches you many things: how to increase profits, how to manage your time efficiently, and it can even teach you about how other people's minds work.
Increasing profits: Each tree, crop, and animal have a price, a harvest time, and a profit amount. For example, a pumpkin seeds can be purchased for 30 coins a piece, are harvestable in 8 hours and are turned around for 68 coins a piece. With the cost of plowing the land (15 coins), this gives you a profit of 18 coins per 8 hours of gameplay.
(Don't worry, you plant and then come back 8 hours later to harvest... no one expects you to sit there and wait. That's the beauty of this game: it's addicting, but it's literally impossible to sit on it for more than 20 minutes at a time. You run out of things you can do in one sitting. Very well planned by the minds at Zynga!)
On the other hand, peppers cost 70 coins a piece, take 1 day to harvest, and can be sold for 162 coins. Minus plowing, peppers give you a profit of 77 coins per 24 hours, or 25.67 coins per 8 hours. Comparatively, peppers are a much better investment than pumpkins. There are many crops and livestock to experiment with, forcing the simulated farmer (you) to weigh profit options by comparing cost, time it takes to harvest, and turn around price. Just like real life!
Leveling up is a result of gathering experience points (XP). XP are gained by planting crops, harvesting crops, plowing land, harvesting animals and trees, buying decorations and buildings for your farm, using heavy machinery (such as seeders, plowers or harvesters), and helping neighbors.
The game allows you to have neighboring farms, which are actually other Facebook friends who are also Farmville users. You are able to visit their farms, leave them notes, or help them out every once in a while by shooing away crows, picking weeds or scaring away foxes, and in turn you get a reward!
Visiting other farms gives the advantage of comparing processes with results. For example, compare this level 5 farm with a farm belonging to a level 28:

(Credit to Joshua Vivace and Kate Ryan.)
As you can see, the farm on the top is quite unsuccessful. Wilting plants means you lost track of time, and now your coins have gone to waste. The white outline around the cow and horse mean they are ready to be harvested but you have not yet attended to them! The red dots on the cherry tree mean that the cherries are ripe and ready to be picked. This farm is unsuccessful because of lack of care, attention, and to be honest, lack of stuff! How are you going to have a successful farm with only 15 plots of land - there's much wasted space.
Now, the farm on the bottom knows what they're doing. There are tons and tons of plots of land, all with varieties of fruits and vegetables, increasing her total revenue. Her animals are sorted, as well as her trees, and she is taking full advantage of the amount of land she has to work with. She probably took some risks to get this far ahead, but look how successful and accomplished she is! Constant attention and care is required to maintain a farm this beautiful.
After comparing what people do right and what people do wrong, you can go ahead and use their ideas and insight to create your own farm. I don't know if I could ever be fully satisfied with my farm, but it's well on it's way to becoming successful just like Ms. Level 28. Mine is currently going on level 21. (I've always dreamed of the day I would turn 21!)
Now, as you can see, my farm is not quite as developed as the second of the two example farms, but I'm using my newfound entrepreneurial and organizational skills to work towards the top.
All in all, I give this game an A+. There are a wide variety of crops, livestock and decor to choose from, along with good lessons to be learned. It can pass the time, but cannot suck up your entire day. Facebook application perfection. Let's be neighbors!
And for your photo of the day:
Peace be with you, Sara.