Despite successful IPO, Kayak’s startup gene is still running the show

After booking trips by using locally grown travel phenom Kayak.com for years now, I finally got to tour the company’s fast-growing technology operation in Concord last week. Led by co-founder and Chief Technology Officer Paul English and fresh off a successful initial public offering, here’s some stuff you might not know about Kayak:

… There are more than a dozen different versions of the site, all with barely detectable differences, and you could stumble upon any one of them without noticing. But an analytics team is tracking what works best for the site’s 100 million monthly travel searches.