Hundreds of millions of people have Twitter accounts… but how many know how to use them effectively? You know how to tweet at someone with the @ symbol and their user name, but did you know that if you start your tweet with an @, the only people who see that tweet on their feed are those who also follow the person you’re tweeting at? Put any other symbol first – most commonly used is a period – and suddenly that tweet shows up on all of your followers’ feeds. Want to direct message someone? Type “D” then their name to send a message to them and only them. Finally: use lists! You may wonder how users who follow thousands of other people keep everything organized. With lists! To create a list, go to your profile page, click Lists on the left, then click create list, and add any number of people you want to it – even people you don’t follow. Twitter just got a lot more manageable!