Led by the popular photo-sharing app Snapchat, a number of startups are challenging the belief that everything one posts online is destined to be online for eternity. Even social networking giant Facebook recently released a Snapchat-like feature called Poke, which enables users to send notes, pictures and videos to their friends that dissappear after an allotted amount of time. Continue reading Snapchat and Fleeting Messaging Apps Grow in Popularity