In terms of brand recognition, it’s hard to top a huge live display billboard in Las Vegas . But Foursquare has managed to do it. As you can see above, they now have a massive, multi-level and multi-angle display practically screaming about the... 

This is a guest post by Hunter Walk ( @hunterwalk ) who conducted a survey of 500 Foursquare users to better understand their check in behaviors and motivations. His obsession with Foursquare is unrelated to his day job leading the consumer product team... 

We’ve written about Fanvibe ( formerly FanPulse ) a few times because they do a nice job mixing some of the hottest elements of the web these days (tweets, check-ins, gaming elements) with sports. And now we’re about to enter the peak time... 

It’s no secret that Google, Apple and even RIM want a piece of the $1 billion-and-growing mobile advertising market. The fight over share of ad dollars is even resulting in possible anti-competitive practices. Apple’s developer licensing... 

Editor’s note : The following guest post is by Nikhyl Singhal , the co-founder and CEO of voice-application startup SayNow . Is it conceivable that one of our greatest inventions, the phone number, is about to face extinction? Just ask Mark Zuckerberg.... 

Are any of you intending to rock? Well then I salute you and offer one of two You Rock Guitars from InspiredInstruments . This $199 git-fiddle is actually a MIDI guitar that connects with either the Wii or the PS3 and can be used to play games like Guitar... 

An interesting paradox in the technology world is that there is both a shortage and a surplus of engineers in the United States. Talk to those working at any Silicon Valley company, and they will tell you how hard it is to find qualified talent. But... 

Editor’s note : The following guest post is by Ashkan Karbasfrooshan, the CEO of  WatchMojo , a producer and distributor of premium video content. Follow him on Twitter @ashkan or @WatchMojo Last week, Erick posted an article on TechCrunch titled... 

One of the big problems with drug and prostitution transactions is that they tend to involve a lot of cash, and cash is hard to launder. Taking credit card payments has never been easier via Square , which lets anyone swipe credit cards with their iPhone.... 

A unique spin on the concept of co-working space, Sunfire Offices was started three months ago by ex- Google engineering manager Niniane Wang and and ex-Facebook engineering manager Yishan Wong . While there are plenty of other co-working spaces in downtown...