I use Facebook a lot. I've moved about quite a bit over the years, and FB is a quick and easy way for me to keep in touch with friends. I have very few family members who use FB, and that's fine by me. Apart from friends I've also added people I've met online. Every few months I do some culling of the friends list, so the people on my FB list most often are people I actually want to have on the list. For the rest I use Twitter occasionally, as some friends use Twitter rather than FB, and I also have a Livejournal account, which is always friendslocked.