What does buying an airline ticket have in common with connecting to a friend on Facebook? Surprisingly enough, these two seemingly unrelated activities do share a connection. Social media, such as Twitter, Facebook and YouTube, are expanding to unexpected industries such as online travel websites. Incorporating social networking directly into online travel sites has become the latest marketing strategy for companies such as Expedia.com and Travelocity, who should be commended for at least trying to leverage the power of social [...]