The Internet giant buys another company, as Alibaba, the Chinese giant in which Yahoo has a large stake, moves closer to its blockbuster IPO.
The company has been slowly removing Google and Facebook log-ins from its site, and Flickr is next on the list.
The social network sends billions of emails to users daily and says adoption of the encryption standard it uses has skyrocketed among webmail providers.
Since taking over Yahoo in 2012, Marissa Mayer has bought companies at a breakneck clip. Yahoo's mobile czar, Adam Cahan, says the reason is simple: because they had to.
Wall Street drives down Yahoo's stock as questions surface about the company's progress and CEO Marissa Mayer's tenure enters its third year.
To access Yahoo Sports Tourney Pick'Em up, users now need a Yahoo ID -- soon the same will be mandatory for services like Flickr and Fantasy Sports.
That controversial research into how posts affect users' emotions is just latest in a long line of privacy flaps -- and apologies -- for the social networking giant.
To try and rack up advertising revenue from mobile developers, Yahoo is testing an ad unit that would be familiar to Facebook users.
The social-networking company beats expectations and points to fast-growing revenue from mobile advertising.
Facebook's second quarter included a surprise scandal that raised concerns about how powerful it can be and what we give up to use the network.