This emoticon literally means "
heart" since that is what it looks when viewed sideways. In IM language though, it's a less serious way of saying somebody you "love" them, or at least "care for" them. Even if you do really "love" somebody, you don't want to say it every minute and every
day -- it gets old and may even scare him or her. So, use "<
3" for
normal every day conversations, reserving "love" during the times you really want the other to know you mean it.