Here's a wonderful Christian discipline; pick one of your facebook friends—be it from high school or college, a work associate, family member or just a friend—and pray for that person's salvation every day. (I placed my person's picture as my cell phone's background image and it reminds me to pray for my friend throughout the day.) Determine how long you are going to pray for the same person, such as indefinite, a week, a month, the season of Lent, etc. Keep the identity of your prayer friend anonymous. Try it!