Game on. Booking Holdings, the former Priceline Group, that is, has held back until recently in on-boarding apartment rentals, although it has had a healthy stock of vacation rentals, apartment hotels and hostels for some time. It now wants to go head-to-head with Airbnb, and Travel Tech Editor Sean O'Neill has the story about Booking's strategy. You can learn more about it in our Skift Call tomorrow (see below) on The Airbnb Threat.

Airline insiders might be familiar with how credit card calculations fit into route strategies, but Airline Business Editor Brian Sumers deftly elucidates the whole thing in detailing Southwest's strategy in Hawaii. It's a really good read.