AP – Twitter can now let the world automatically know your whereabouts as well as your thoughts and activities.

Salesforce.com customers were abuzz on Twitter Thursday morning as the result of what they described as a North American outage.

Macworld.com – Birdfeed, the “very niceâ€� iPhone Twitter client developed by Buzz Andersen, has been acquired by Thing Labs and rebranded as Brizzly for iPhone, in order to tie in with the company’s Brizzly Web interface for Twitter and Facebook.

AP – Because startups aren’t required to report regular financial results the way publicly traded companies are, it can be hard for outsiders to get a sense of what hot ones like Facebook and Twitter are really worth.

PC World – After Chile’s massive earthquake and potential Pacific Rim tsunami damage, relief organizations, government agencies, corporations and throngs of people are on Google, Twitter, Facebook, YouTube and other services to seek and provide information and help.