Twitter and Facebook light up with jokes, information and warnings about #Nemo
While reports say HP is mulling a breakup, close source says it's not happening
Rivals HP and Lenovo could use market uncertainty to their advantage
Zuckerberg tells investors 'Facebook is a mobile company,' but others note that company must improve ad formats first
CEO Mayer says Yahoo plans to invest in improving its dsearch technology, while maintaining its Microsoft partnership
Facebook and Google tangle for users and time spent on their apps
With reports of a smartphone and tablet launching this spring, analysts praise Google's competitive drive
Graph Search could pull in targeted advertising, say analysts
Social network's Graph Search could change the way people think about search
PC maker reportedly looking into going private again with leveraged buyout
