Pinterest

According to new findings provided exclusively to  FierceMobileContent  by Mobidia, Facebook and Facebook's Instagram service were the most-viewed mobile social apps last month.

Barnes & Noble is bolstering its Nook tablets and e-readers by preloading popular social networking applications Pinterest and Twitter as well as a revamped version of Facebook.

With an audience of more than 3,000 people from 45 countries, last week's Web Summit in Dublin brought together dozens of experts in mobility, cloud and digital marketing, but developers were a key area of interest as the conference played host to hundreds of startups vying for investor interest. FierceDeveloper was on the ground during the Web Summit and we compiled the following list of ideas, advice and food for thought for mobile app makers to consider.

Although Facebook remains the most popular social networking application across Apple's iOS platform, its dominance is waning as download volumes drop off and rivals like Pinterest and Twitter gain steam.