A tweet is the 140 character comment or message that users can post on Twitter. It can be easy to tweet and retweet almost instantly, but it's always a good idea to stop for a moment and think about what you're tweeting.

Twitter can be great for networking, following businesses and individuals that you like and admire, and taking part in discussions.A positive Twitter profile can be a fantastic addition to your online identity.

It's worth checking that what you tweet is appropriate. Tweeting hurtful or abuse comments can escalate cyberbullying, and get you into huge trouble. To find out more about creating a positive digital identity, click here.