Monday launched an early preview of Dart, a new programming language for building Web applications seen as an alternative to JavaScript. The goal of Dart is to make the creation of Web applications less of a hassle. Google said Dart is “a class-based optionally typed programming language for building Web applications.” In a blog post …

For the past three months, Google+, the company’s social network, was available only to users who had been invited by the company or by friends who already had access to the site. “For the past 12 weeks we’ve been in field trial, and during that time we’ve listened and learned a great deal,” Google’s Vic …