Twitter may soon lift its 140 character limit on tweets. 10,000 character tweets could be available as soon as March.
Twitter co-founder and chief Jack Dorsey said that he is giving a third of his shares to company employees.
Twitter lifted its character limit for direct messages between users, saying it would help make the private side of Twitter "more powerful and fun."
Instagram began letting users easily tune into hot topics of the moment as the Facebook-owned image sharing service stepped squarely into Twitter's domain.
Google and Twitter announced a partnership Tuesday to display tweets in search results, renewing a tieup that ended in 2011.
Twitter said it was making it easier to take direct messages private, carving out a bigger space for targeted exchanges on the popular microblogging service.
Twitter chief Dick Costolo said the microblogging site planned to work with Indonesian authorities to warn people about natural disasters.
Twitter said it had purchased the maker of the video streaming app Periscope, amid what seems to be surging interest in live video sharing.
Twitter chief Dick Costolo said Thursday that "a relationship" with Google has been rekindled, but he was coy on the details.
Hackers took over Twitter accounts of the New York Post and United Press International, writing bogus messages.
Twitter said it would begin tracking which other applications people have installed on their mobile devices in a bid to better target ads and content.
Twitter's co-founder outlined plans to make cash registers a thing of the past.
Twitter began letting users search through every tweet publicly fired off at the globally-popular one-to-many messaging service since it launched in 2006.
Standard & Poor's gave Twitter's recent $1.8 billion debt issue a "speculative" rating of BB-.
Twitter plans to set up shop in Hong Kong early next year, focusing on ad sales instead of the one-to-many messaging service banned in China.
Twitter saw its shares hammered after reporting quarterly results that largely met expectations but failed to allay concerns about growth of the messaging platform.
Twitter set out to weave itself into mobile applications with a free "Fabric" platform to help developers build better programs and make more money.
Twitpic put out word that the service is shutting down after all, apologizing for a "false alarm" that a merger would be its salvation.
Twitter began letting people instantly listen to music and other audio by clicking on tweets from the popular messaging service.
Twitter sued the US government, claiming its free speech rights are being violated by restrictions on its ability to disclose numbers of secret orders.