Facebook is the de facto social networking site today, but you shouldn't forget about the rest of the sites, since their services are used by quite a lot of people as well. They are somewhat different from Facebook, so there are a few guidelines to consider when using them.
If you want to choose a great present and make your client happy, you need to know that person well. And, since you have already found their perfect home, you probably know more about them than you would think.