Some people seem to think Facebook walls and Twitter mentions are a new way to have a conversation with friends and family. But social networks are not a communication tool to replace text messaging, emails and phone calls. And it certainly isn't an instant messenger. So please stop publicly replying! If you want to say "hi" to your friend, text them. If you think the world cares about your drunken memories from last night or needs to know your plans for the party tonight, they don't. And please stop the social network Happy Birthday wishes! If you don't have their phone number to text or call them, they probably won't care if you forgot their birthday.