The CouchSurfing Project is a free international Internet-base hospitality service, and currently the largest hospitality exchange network. As of April 2008, it had more than 500,000 members in 226 countries and territories. From various indicators it can be estimated that many members were actively using the website, with 40 percent offering their couches to host travelers (with another 22 percent saying "maybe" and others who are traveling at the moment).