Instagram released new versions of its applications for iPhone and Android. It also unveiled a new filter called Mayfair. The Instagram for iPhone application received a few tweaks such as native Facebook integration for iOS 6 users and the option to select photos from albums other than the device’s camera roll. Read more.

48% of the most popular pins on Pinterest lead to expired pages on retailers’ websites, according to a new study. Pinterest is the 4th largest referral traffic driver to e-commerce websites. Read more.

Facebook has just announced its newest app called "Poke" that lets people send photos, videos, pokes, or text Facebook messages to their friends that expire after a few seconds. Read more. 

Google has hired Brian Wallace, the former vice president of strategic marketing at Samsung’s U.S. phone unit, to fill a similar post at Motorola. At Samsung, Wallace led consumer marketing, and was credited for the phone maker’s punchy ad campaign, which tackled Apple directly by mocking its most ardent fans. Read more.