Brian Patrick Eha is a freelance journalist and former assistant editor at Entrepreneur.com. He is writing a book about the global phenomenon of Bitcoin for Portfolio, an imprint of Penguin Random House. It will be published in 2015.
The coming launch of the 'WSJ Profile' social site, the arrival of sponsored posts on Tumblr, the value of a Google+ referral and more social-media news.
A revealing look at the immigrant family driving Cosabella as the Italian fashion brand creates a new label for JCPenney, experiments with high-tech underwear and expands globally.
Read about the growing interest in the Israel-based Waze, the problems with Twitter's two-step authentication process, Flickr's website malfunction and more social-media news.
Read about LinkedIn's disappointing second-quarter forecast, Google's plans for your app activity data, Warren Buffett's new online presence, and more social-media news.