Shareholders of aQuantive have given the green light for the company’s $6bn purchase by Microsoft in a meeting that reportedly lasted for a little over six minutes.

The acquisition, which gives the Redmond giant ownership of ad technology provider Atlas, as well as interactive agency AvenueA and targeting tech company Drive PM, is now expected to close in the next few days.

It is the largest in Microsoft’s history.

Microsoft said aQuantive would continue operate from its Seattle headquarters, and form part of the software giant’s Online Services Business.

There’s a nice account of the meeting on the Seattle Post-Intelligencer’s blog.