Hotel technology, hotel marketing technology, the infrastructure required to keep the channels connected and the data flowing and the changes with new regulations.
More technology and systems are being created every day. Some solve real problems some solve future problems. But the landscape needs filtering. A new technology company might more attention than others, but one needs to know what is happening in the grand view of things.
Probably one of the most rapid changes parts of the industry and the most exciting ones. But implementing the wrong technology can be quite disruptive too.