Sean O'Neill

Expedia, Booking.com, and Ctrip are boosting the supply of sightseeing and experiences options that can be booked in merely a few clicks. But several factors are complicating any plans they may have to dominate bookings in this sector the way they have in flights and hotels.

FareHarbor and Bokun act as if they're unstoppably on the way to becoming giants. But the market for booking systems for sightseeing and experience operators remains very much in flux.

The deal gives a nice return to private equity firm Livingbridge, which bought Sykes in 2015 for about $75 million. What makes Sykes Cottages stand out is that it has fully built almost all of its technology on its own and has almost 80 percent direct bookings. New majority stakeholder Vitruvian is now placing a bet on short-term rentals.

Short-term rental companies can't believe their luck. Private equity and venture capital continue to pour into their sector despite a hot market. Vacasa has remained an investor darling, in part, because it has branched into opening real estate brokerages to help boost the supply of units.

Venture capitalists are turning their sights on airline distribution. Duffel's backing by VC firms Index and Benchmark brings hope to the sector. New ideas and technologies may help create more efficient and user-friendly ways for travel agencies to access airline data to sell tickets and other products.

Altido, a short-term property management group based in Europe, plans to grow through bite-size mergers in 2020. Its new CEO seems right in saying that the dynamics driving the company's strategy speak to larger dynamics in the sector.

This week travel startups announced more than $64 million in funding. Investors backed innovations in extended-stay lodging, food waste management, voice-powered instructions for airline and hotel workers, help for distressed visitors in India, and event planning tools.

In traditional business logic, the big beat the small. But in Asia-Pacific today, fast companies beat the slow ones. It's an open question whether Travelzoo can rev up its metabolism enough there to thrive.

New deals mean that offline and online travel agencies will more quickly and commonly see richly descriptive details about what any given airfare includes, such as facts about legroom and photos of premium class seats. But don't hold your breath in anticipation. Travel sellers have to wait another five years before next-gen selling will become the norm for agents.

Nowhere is the need for a more tech-driven, business-oriented model for setting rates more clear than with short-term rental property management companies. Several startups aim to supercharge rate-setting with data-powered insights. But there's probably too many of these young companies for them to all survive long-term.