Angstro, an experimental social-graph and news-crunching startup, has been acquired by Google to help lead the company's charge against Facebook in social networking. The acquisition was first reported on by Jessica Guynn of the LA Times.
Here's how Angstro describes itself on its website: "Inspired by the angstrom unit of measure (0.1 nanometre) named after Swedish physicist Anders Jonas Angstrom, Angstro represents the ability to hone in on highly focused, relevant news across professional networks. Where search engines such as Google and other news aggregator services have immense infrastructures that return a huge array of random results, Angstro analyses a wide breadth of information from multiple data sources to deliver very few, yet very intelligent results."