If you’re really a traveler you would probably know the website www.couchsurfing.com.
CouchSurfing is now the world’s largest hospitality exchange network. With over 1.85 million members in 237 countries and territories, CouchSurfing is the most visited hospitality service on the Internet, averaging around 40 million daily page views July-December 2009. – (source: Wikipedia)
Couch Surfing is referring to the practice of moving from one friend’s house to another, sleeping in whatever spare space is available. The site is making connections between travelers and the local communities they visit.
Of course, the same with some networking websites, couchsurfing.com has also terms and condition that can be found at this page.
Be responsible for anything you have posted on your page. Just bear in mind that networking has its pros and cons, the idea might work for other people, and maybe not for some. Put safety on your top priority whether you are the host or the couch surfer.