Users in the Netherlands and Israel are seeing a "buy tickets" button on event pages and in their news feeds. Hosts have the option to charge event-goers a set amount per ticket. Currently, Facebook is sending attendees to third-party sites (Ticketmaster and Eventim) to complete transactions. All Facebook was first to report the ticketing feature, and The Next Web confirmed it.
Facebook's "Buy Tickets" feature sounds a lot like Eventbrite, a company that's worth a few hundred million dollars. Eventbrite lets anyone create an event and collect RSVPs or money from attendees, whether they're throwing a New Years bash for friends or hosting a major business conference.
Here's what users are seeing in their feeds and on event pages. Here's a link to one of the events in Israel where a "Buy Tickets" button has been implemented. The testing could be more widespread than just those two countries, but other tests haven't been confirmed.
