Social gaming company Zynga is having discussions with investors about raising around $250 million in funding. This would give Zynga between a $7 and $9 billion valuation. This past April, Zynga issued stock that valued them at $4 billion. Zynga is best known for making games like FarmVille and CityVille and selling virtual goods around them. Zynga has a total of 275 million active monthly users. The company made about $400 million in profit last year on $850 million in revenue. [WSJ]

Zynga’s newest game CityVille has passed 100 million users. The game launched only 41 days ago. Not bad. However FarmVille is has a higher percentage of daily active users as a percentage of monthly active users than CityVille. CityVille has more international users and and a younger user base than FarmVille does, but it makes less money for Zynga than FarmVille does. Despite the lower amount of money and less stickiness for daily users, the growth is still very impressive.

Zynga has just beat their own record with the launch of CityVille. CityVille has beat FarmVille as the world’s biggest game. And it only took 22 days. CityVille has 61.7 million monthly active users and FarmVille has 56.8 million. Zynga’s total traffic on Facebook is now 261.6 million monthly active users. As of this past November, Zynga was hitting about 198 million monthly active users.

Wiley’s is releasing a FarmVille for Dummies and it is now available for pre-order at Amazon.com. The book is only sale for $13.14 and it won’t be in print form until February 15th. Below is an excerpt from the book description:

I actually laughed out loud when I saw the caption “No FarmVille, I will not BUY your water” and saw this picture of FarmVille water submitted by Reddit user badgettz. The story even gets better when you read the comments. Apparently 7-11 and Zynga have some sort of FarmVille branding agreement. 7-11 sells FarmVille-branded water and sandwiches. Below are some of the best comments in response to this promotion.

FarmVille, the game created by Zynga has passed the 80 million mark as of yesterday. Thats about 20% of Facebook’s total user base. Recently Zynga created a fund raising campaign for Haiti and Farmville users donated about $1 million. [AllFacebook]