DogVacay launched in March this year as an Airbnb for dogs -- offering owners an alternative to soul-less kennels and expensive dog sitting services for when they need to leave town and leave their pooches behind. Since then, the service has picked up some traction with users tripling every month since launch, and to continue its growth, it's adding another VC to its list of backers. Andreessen Horowitz, which also backs Airbnb, has signed on to DogVacay's seed round at an undisclosed amount, joining existing investors First Round Capital, Science, Baroda, and Quest. Although the service first started as a basic dog-boarding alternative, with much of its use developing by word-of-mouth, over the last couple of months, Aaron Hirschhorn, co-founder and CEO of DogVacay, says that it's also been offering an ad-hoc concierge service

covering a lot of other functions, including dog walking and daycare for people who work all day. Part of the funding will be used to make that into a more formal offering, as well as being some proper marketing for the service as DogVacay rolls out nationally -- or "spreading the woof," as Hirschhorn likes to say, to those 72.9 million households in the U.S. that own a pet....(Read more)