MARK ZUCKERBERG

The conflict between Twitter and Instagram proves that not all wars are bad.

Instagram began to trend on Twitter after Facebook went down for some users.

Facebook (Nasdaq: FB), the No. 1 social networking site, quashed market speculation it might forge an alliance with Yahoo (Nasdaq: YHOO), the No. 3 search engine.

Shares of Facebook (Nasdaq: FB) resumed their fall after director and early investor Marc Andreessen cashed out a big position.

While “The Social Network” portrayed Mark Zuckerberg’s classmates the Winklevoss Twins as the losers over a battle for the control of Facebook, Cameron and Tyler Winklevoss may be the ones laughing now — their share in Facebook is now worth roughly $134 million.

Shares of Facebook (Nasdaq: FB) rose 13 percent Wednesday despite the availability of 800 million new shares offered to employees as stock options.

Yahoo! (Nasdag: YHOO) has announced dual partnerships with GREE (TYO:3632) and DeNA (TYO: 2432), Japan's two larger mobile gaming companies and subsequent arch-rivals, to expand its mobile business opportunities through gaming.

Sheryl Sandberg, COO and director of Facebook (Nasdaq: FB), joined the parade of insiders who have cashed in on the company's public status.

Shares of Facebook Inc. (Nasdaq:FB) fell nearly 4 percent as Facebook’s employees are free to sell some of their stock.

Florence Detlor, 101, has officially been named Facebook's oldest user while Maria Colunia Segura-Metzgar, 105, unofficially holds the title.

Only one person can officially be the oldest person on Facebook, and the contest for that title seems to be heating up.

Shares of Facebook (Nasdaq: FB) rose 24 percent Wednesday after the company reported third-quarter results that exceeded estimates.

Facebook (Nasdaq: FB), reported a third-quarter net loss of $59 million as revenue rose 32 percent to $1.26 billion.

Facebook (Nasdaq: FB) is expected to report its first profit as a public company and may hint at ways to keep growing.

Facebook fell back below half of its IPO value as a study claims only 6 percent of "likers" actually engage with brands there.

Facebook (Nasdaq: FB) finally got some sobering data about the financial prospects about two of its new experimental features it hopes my eke more money out of the average social network user.

Twitter users reported that Facebook was down in European countries.

As Facebook hits the 1-billion-member mark, it hopes to turn each user into an advertiser, whether they realize it or not.

Facebook hit its long awaited milestone of one billion active users on Thursday amid continuing efforts to secure more persuasive revenue streams than investors see today in the struggling social media giant.

Shares of Facebook (Nasdaq: FB) rose Thursday, a day when CEO Zuckerberg announced that the site now had 1 billion members.

Facebook also announced that it has received more than 1.13 trillion 'Likes' since it launched the tool in February 2009.