The deal has remained private since it took place in early-September but TripAdvisor confirmed the deal after it emerged this week that at a UK-based travel company, which cannot be named, had also been tracking the sale.
Travel-Library is a large portal of information for hotels, car hire, tours and short breaks, allowing users to rank and review accommodation and add additional content.
A vast database of information about destinations, submitted by users and including ideas for attractions, entertainment and activities, has been created by Travel-Library.
Confirming the deal to Travolution this week, TripAdvisor European managing director Marc Charron said: “Travel-Library has got great content and it has great traffic. There are not a lot of these sites around so it was a good fit for us.”
Charron would not reveal traffic figures but it is understood that Travel-Library attracts between 750,000 and 900,000 unique users a month.
TripAdvisor is not expected to integrate any of the content into its existing site in the near future, Charron said.