The legal logjam could finally break in coming months as some states prepare to turn on the taps for new forms of gambling based on social media.

Nevada has already passed a law and New Jersey is likely to follow soon, according to Pillsbury lawyer Jim Gatto. He adds that Hawaii and California are also considering bills to legalize online gambling.

Right now, the status of online gambling in the U.S. is a no-man’s land. It was considered illegal for years under federal law but the Justice Department last year issued a green light memo. The memo gives the go-ahead for gambling so long as the state allows it, the betting takes place within state borders and no sports betting is involved.

The new rule hasn’t changed anything on the ground for now, however, as “gamblers” continue to play Facebook games like DoubleDown Casino that let them play but not cash out.

“Who wants to shovel shit in Farmville when you can play poker with other people?” a source at Doubledown told me last year in explaining the game’s appeal.

Casino Industry + Social Game Makers

The recent go-ahead from Justice has set off a flurry of courtships between app developers and firms that supply back-end services to casinos (slot machine operations, pay-out processing and so on). The most prominent has been casino giant IGT’s decision to buy DoubleDown for $500 million in January.

According to Gatto, more and more social game makers like Zynga are baking gambling-like activities into their games in anticipation of a switch towards legalized gambling. He says the partnerships are necessary because established casino players like Aristocrat and Shufflemaster don’t know how to make social games and game makers don’t know how to run a casino or deal with regulatory issues.

Gatto adds that famous casino brands like Bally’s and Caesars are also trying to get a piece of the action.

The money at stake is potentially staggering as a recent New York Times report cited an estimate of $6 billion to $100 billion. Much of this money may be flowing off-shore as Americans look for online casinos hosted in other countries.

While it’s not illegal for Americans to bet, it is illegal for companies to process their gambling transactions. Famous Antigua-based companies like Full-Tilt Poker were brought down after federal agents caught them routing payments through front companies like florists (the agents also busted the owners, which include several poker celebrities, for running a Ponzi scheme).

Gambling advocates say turning the legal switch will allow states to get badly-needed revenue and to recoup money that would otherwise flow overseas.

But a whole nation of Facebook-based gamblers is still a long ways off. Parents may not like the idea of a casino in their teenager’s room, and places like Utah have already passed laws making it illegal to place or receive a bet in the state.

Gatto adds that, in California, the legal process is “incredibly fraught” due to competing interests of casinos and Indian tribes.

Images by Louis Louro and Sanzhar Murzin.

On the acquisition front, Kabam says its looking to buy companies similar to Wonderhill, which is acquired in October. WonderHill says it stands apart from competitors like Zynga and Playdom because it develops more “wholesome” social and casual games like Green Spot, where players can save a rainforest, or the pet rescue product Dog World.

While those games certainly standout from titles like Zynga’s Mafia Wars, Kabam believes it can differentiate itself from its social game rivals by aiming more for serious players, as opposed to the usual Facebook player, who perhaps logs on briefly and without much regularity.

The $30 million Kabam has netted shows how serious investors are becoming about the the social gaming space. Major media companies like Disney (NYSE: DIS), which just shut down its console gaming studio Propaganda Games, has stated it will concentrate its resources on social gaming. Last fall, Viacom (NYSE: VIA) also said it put more of an emphasis on social gaming at MTV Networks following last month’s sale of Harmonix, makers of the disappointing Rock Band console gaming series.

A recent eMarketer forecast said social gaming revenues will surge from last year’s $856 million to over $1.3 billion by 2012. General usage of social media gaming is set to gain by 29 percent in 2012 to 68 million users who play at least one game a week.

In the meantime, Kabam has several titles ready for release this year, as it rides the rising wave of social gaming. The round was led by Redpoint Ventures and Intel (NSDQ: INTC) Capital with additional funding from original investor Canaan Partners, which incubated Kabam in its offices at the seed stage. Release