I recently made a hotel reservation and they sent me an email inviting me to visit a website they setup where you can meet and interact with the guests who will be there during the same time period. They are basically just forums, one for each month, but I thought it was interesting. If you found the right type of hotel with the right audience, our social functionality might be a great fit. Even afterwards maybe, if you wanted to upload pictures you took during your trip, or pics and reviews of the hotel itself.

From the email...

To make your stay even more exciting we've created a site where you can meet fellow Pod Hotel travelers who are staying at the Pod Hotel when you are---before you get there!

Please note your reservation number, which will be your password, and your login is your email address.

Go beyond your pod!
http://podculture.thepodhotel.com