Twitter shares tumbled Friday after a brokerage analyst warned the popular messaging network was overvalued following a meteoric rise since its initial public offering in November.
Twitter revealed Thursday that a message acknowledging the death of "Glee" television show star Cory Monteith was the most reposted tweet on the globally popular messaging platform this year.
Updated mobile software rolled out Tuesday by Twitter lets smartphone users send pictures in direct, personal messages seen only by recipients instead of being shared publicly on the social network.
Freshly leaked documents by former US intelligence contractor Edward Snowden on Monday revealed spies disguised as fantasy characters prowled online games hunting terrorists.
Beijing on Saturday announced it was setting up an "air defence identification zone" over an area that includes islands controlled by Japan but claimed by China, in a move that could inflame the bitter territorial row.
Twitter on Friday announced it has toughened the encryption of traffic at the globally popular one-to-many messaging service to thwart online snooping.
Justin Bieber's concert gear has been seized in Argentina in a legal scuffle with a photographer, the latest in a series of incidents trailing the Canadian teen idol's South American tour.
Twitter's high-flying Wall Street debut drew attention to the growing power of social media, but also raised concerns about a potential bubble in the sector.
Twitter will make its Wall Street debut Thursday with a price tag of $26 per share, bidding to raise up to $2.1 billion in the most eagerly awaited stock offering since Facebook.
YouTube's first-ever music awards thrilled and spilled, with Eminem named Artist of the Year though most winners were lesser known acts who featured in an eclectic show filled with stunts.
The US Congress on Friday allowed an estimated $5 billion cut to a federal food stamps program to take effect, slashing the social safety net for the poor, elderly and disabled.
Twitter shares will trade on the New York Stock Exchange, documents showed Tuesday, shunning the tech-heavy Nasdaq which saw major problems in Facebook's market debut in 2012.