Twitter alternatives

Twitter is an online social networking and microblogging service that enables users to send and read short 140-character text messages, called "tweets". Registered users can read and post tweets, but unregistered users can only read them.
Twitter alternatives are:
Facebook, Google Plus, LinkedIn
Here are the latest news about Twitter:

04.04.17 Twitter adds location sharing for business

Twitter has released a new feature aimed at its business users. The new addition is focused on helping businesses running customer service via Twitter and offers businesses an easier way to request and share locations with their customers — for example, to enable a store-locator function, or to customize responses based on where the customer lives. The location-request option is something businesses can use over Direct Messages, by first asking the customer to share their location with a click of a button. The customer can choose whether or not they want to do so, and then can opt to share their precise location or pick a place-name from a provided list.

2015 Twitter launched Mobile Ads Manager

2015 Twitter Ads gets Google DoubleClick integration

2014 Twitter and IBM Watson team up help businesses better understand their customers

2014 Twitter launches Promoted Video ads