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Over 40% of a brand's Facebook page fans "unlike" the page as soon as a campaign ends, suggesting that a lot of follower activity on the social network is driven by agency interaction, not a real loyalty to the brand, according to a new study.

The study by DDB reveals that two in five brand followers surveyed are not interested in engaging with Facebook pages after a marketing engagement ends.

When you think of services offering to get you more fans, followers, and friends on social media sites, a few words come to mind: spammy, scammy, and sad. Purchasing fans is taking the easy way out. Instead of building up a community of followers who actually appreciate what you (or your company) has to say, you can give off the appearance of popularity with a store-bought set of fans. While no one in their right mind will come out and say that the social media "marketing" services that deliver followers and fans are worthwhile, the truth is that many people and businesses are using them anyway, even if they won't admit it. But can any of these services really be trusted?

Touchdown dances, chest painters and rally caps - if you're not a sports fan, it's hard to understand why a perfectly upstanding citizen would wear a gigantic foam hand or engage in the politically incorrect Tomahawk chop. But if you are a diehard sports addict, you've probably been one since you were a kid. We watched in awe when Nolan Ryan pitched a 101 mph fast ball at the age of forty, when Air Jordan effortlessly dunked from the free throw line and when Joe Montana set the record for most yards passing during Super Bowl XIX. When you've been present to watch sports history, you can't turn your back on the game now. Nevertheless, with so much happening at once, below are a few tools that can help you juggle multiple games:

At this point, most programmers have already heard about StackOverflow. First started last year by celebrity coders Joel Spolsky and Jeff Atwood, coding Q&A site StackOverflow crowdsources programming solutions for all to see. The site is popular for its Digg-like voting interface, clean design and, of course, its useful information. The duo has since begun licensing the software behind StackOverflow to provide companies with customizable Q&A forums on a number of topics.

According to this year's Comscore stats, consumer publishing platform Wikia has surpassed DIY social network competitor Ning for monthly unique visitors. Since July 2008 the company's traffic has more than doubled from 2.8 million to 6.5 million unique US visitors per month. Despite abandoning Wikia search in early March, it seems Wikipedia co-founder Jimmy Wales has built another great company. As of this evening, Wikia's CEO Gil Penchina is announcing the company's profitability due to its custom sponsorships program.