Social media moves so fast, it's hard to keep up. Here are the week's top stories in scan-friendly format:

  • SalesForce Acquires Radian6
  • New Sitcom Goes with a Mobile/Facebook Strategy
  • GetGlue Adds Foursquare Capability and Sport Check-ins
  • Security Firm Shows What Tricks Us On Facebook

SalesForce Acquires Radian6

Salesforce.com will acquire Radian6, a Canadian social media monitoring company, for $326 million in cash and stock. The combined company will be a compelling offer in the social customer relationship management space.

Radian6 is one of the leaders in business-class monitoring and tracking of what customers and potential customers are saying about brands on social networks such as Twitter, Facebook, blogs and other networks. The service is used by major brands such as Dell, GE, Kodak and others to gauge customer sentiment online.

Salesforce will integrate Radian6 into the company's as a core part of the Sales Cloud CRM system. Also in the social space, SalesForce has funded and co-developed a tie-in with Seesmic, a popular social media client.

New Sitcom Goes with a Mobile/Facebook Strategy

A new show called Happy Endings is using an interesting marketing strategy that may be used in the future. To raise awareness, the sitcom's creators are engaging consumers by prompting them to text "happy" to 21534, a mobile shortcode, which returns them a video clip featuring the show's stars. New video clips appear each Wednesday. After this exchange, the clip is displayed on the user's Facebook wall.

Mogreet is the company behind this campaign, which tries to get influencers to create buzz for the show. For added effect, a final message will roll out on 9:25 PM on April 13, five minutes before the premiere of the show. The show's producers hope Facebook viewers will be prompted to view in with proper messaging that's time-triggered, spurring viewers to turn on their TVs.

Would such a campaign make you want to watch this show, or do you see this is a stunt? It seems rather invasive for a campaign to post a video to your Facebook wall just by texting a number. The campaign is innovative, if not a tad controversial.

GetGlue Adds Foursquare Capability, Sport Check-ins

GetGlue is a situational social network that allows users to check in to watching a show, movie or other entertainment event. Unlike services such as Gowalla or Facebook Places, which builds social context to physical locations, GetGlue creates community around what you watch at home or in a movie theatre. GetGlue added new functionality to expand the mobile application's capability in the service's biggest update yet.

Now, GetGlue can be integrated with Foursquare, meaning entertainment check-ins can be combined with geolocations if users choose to use them. For example, you can check into a movie and the movie theater at the same time. Also, there's a new sports category that allows users to check into a sport, a team, or an event.

GetGlue is also rolling out new partnerships with NHL, Turner Sports, the San Antonio Spurs and FOX Sports, meaning check-ins can be rewarded with specials and promotions with these new partners. As check-in services expand in functionality, they get more relevance to real-life situations and create new ways advertisers can approach consumers.

Security Firm Shows What Tricks Us On Facebook

BitDefender, a security application for personal computers, has run an analysis on the top scams that trigger malware and spyware on Facebook. The popular social network has some huge holes that affect a large number of Facebook users.

So, what tricks us on Facebook? It turns out 34.7% of all app baits are profile traffic insights, such as "see who viewed your profiled / who deleted you." Next is social game bonuses in games such as FarmVille and CityVille. 14.1% of us are tricked on Facebook by trying to show you shocking images or videos.

In my Facebook feed, I have seen many of my family and friends click on the the shocking videos or pictures, and in turn display the video or image on your Facebook wall, unbeknownst to you. Have you seen malware on Facebook or Twitter? What scams have your friends or family fallen for?