I know HubSpot is more than just a marketing firm. It has a software platform supporting its standard “inbound marketing” strategy that relies on blog posts, newsletters and other channels to drive traffic to desired sites. But it’s still a marketing company. So it’s hard to get your head around the possibility of Google buying the Cambridge-based HubSpot for $30 billion. And an unprofitable marketing firm at that.

The BBJ’s Lucia Maffei has more.