Travel Ad Network, the top ad network in travel, added the IATA Travel Centre and tripwolf to its swelling ranks.

The IATA Travel Centre is operated by the International Air Transport Association. It gives international travelers one-on-one advice on passport, visa and health documentation issues. The site draws data from over 1000 official sources worldwide, including immigration, airlines and police authorities. Most of its traffic comes from the US and United Kingdom.

tripwolf weds professional travel content to user-generated material written by the wanderlust-afflicted. The site serves both English and German-speaking markets. The Travel Ad Network shall sell its inventory in the US and Canada on an exclusive basis.

The Travel Ad Network reaches about 24 million unique users per month. Clients include the BBC-owned Lonely Planet, Rand McNally and Viator.

Founded in 2003, the company is headquartered in Manhattan.