MONTREAL - Canadian astronaut Chris Hadfield may have become a worldwide Internet sensation with his dramatic photos, tweets and musical performances from space. But it took some convincing by his two sons to persuade him of the importance of social media in the first place. His conversion began several years ago — long before Hadfield's mission to the International Space Station, which ended with great fanfare this week. He initially balked when his sons began preaching the merits of Twitter and Facebook more than three years ago.

Fed up with Twitter friends ruining the plots of her favorite TV shows, high school senior and budding software engineer Jennie Lamere took matters into her own hands. She's finalizing an Internet browser plugin called Twivo that uses keywords inserted by the user -- like a show's title or the names of characters and actors -- to intercept any plot-spoiling tweets.

Fed up with Twitter friends ruining the plots of her favorite TV shows, high school senior and budding software engineer Jennie Lamere took matters into her own hands. She's finalizing an Internet browser plugin called Twivo that uses keywords inserted by the user -- like a show's title or the names of characters and actors -- to intercept any plot-spoiling tweets.

(Reuters) - Wall Street took a long-tem view on LinkedIn Corp's prospects on Friday, with at least six brokerages raising their price targets despite the company's slower-than-expected shift to a marketing model based on selling ads on news feeds. LinkedIn on Thursday forecast a weaker-than-expected current quarter, even after first-quarter results blew past estimates.