With more than 600,000 apps available for an estimated 350 million Apple and Android mobile devices, it’s not difficult to see how mobile app advertising could soon eclipse online display advertising.

In a recent study released by comScore, searcher demographics showed some striking differences between those looking for Google+ vs. those looking for Facebook in July.

Social media is not ubiquitous. In fact, says a Pew Internet survey released on Friday, just half of U.S. adults are logged on to sites like MySpace, Facebook or LinkedIn.

One of the most common complaints critics (and competitors) have against Google is that the company — despite its numerous open products and initiatives — is very secretive about the countless algorithms that power its crown jewels, Google Search.

Steve Jobs has resigned as CEO of Apple, he announced to the company’s board of directors.

Facebook Credits are hot. More and more businesses — both large and small — are exploring how they can incorporate Facebook Credits into their overall social strategy.

Many businesses embed YouTube videos on their sites, but visitors can click through the video to YouTube and off the brand’s site. Enter Vidyard, which is launching today as an affordable way for businesses to host videos that can be viewed either on a landing page or via an embeddable player.

Android now has a total of over 150 million activated devices worldwide.

After receiving user backlash over privacy for its newly launch “social ads,” LinkedIn had announced changes to the ad formats.

Google+ users may notice something new on top of their streams on Thursday — a small icon signifying that Google+ Games had gone live.