Yelp's Friday IPO met with Wall Street enthusiasm, spiking the stock price and fueling anticipation of Facebook coming to market. Still, the question remains whether the unprofitable Yelp should buy or be bought after all of this.

More than 30 Girl Scout Councils across 23 states are empowering their armies of cookie-selling scouts with mobile card-swiping technology. The winner? Scout coffers. Loser? Your waistline.

With each new iteration of the iPad, Apple adds some enticing capabilities that are available only to its most recent buyers. I know - early days. But I can't help but wonder how much more content and marketing innovation we will see on this platform once it gets to mass scale around a reliable feature set.

Taking on the conventional wisdom that flying mobile ad campaigns is still too complex and esoteric for most medium-sized and small businesses, ad platform Millennial Media has brought its mMedia self-serve product out of private beta. Aimed both at developers/publishers and advertisers, the tools may help expand the company's client base by leveraging technology rather than direct sales.

AT&T's latest plan to revive its brand image among consumers? Let's have app makers foot the data bill and still not save the customer a penny. Inspired.

It took three different second-screen apps to add up to one fully satisfying experience from last night's Oscars. Of course, the boring telecast put extra pressure on the parallel programming.

Social TV can be more overwhelming than helpful in second-screen apps. At yesterday's Tablet Revolution event, we discussed a next generation of apps that will make the social feeds more manageable and visual.

The annual Sports Illustrated Swimsuit issue is the magazine franchise that just never seems to let up. The publisher reports this week that 2012 proved to be another banner year for the issue's digital extensions. In addition to attracting a record 34.5 million video views in the last week, it also quickly dominated the Apple App Store. The freemium SI Swimsuit 2012 app was downloaded 482,000 times in its first week.

The Council of Better Business Bureaus and its BBB Wise Giving Alliance are partnering with the Mobile Giving Alliance to create the BBB Mobile Giving Alliance. The aim of the new group is to provide donors and charities with a safe and trusted way to use its text-to-give programs.

As awards season comes to a blessed close, apps are still experimenting with the right mix of content, social media and engagement tricks in their second-screen apps.