How Not to Suck at Tweeting: "Be useful. Be novel. Be compelling. Don't be boring." ~ @MeganGarber
Adam Rifkin stashed this in Fixitfixitfixit!
I'm of the opinion that to get better at Twitter, you have to practice every day.
Old news is no news: Twitter emphasizes real-time information, so information rapidly gets stale. Followers quickly get bored of even relatively fresh links seen multiple times.
Contribute to the story: To keep people interested, add an opinion, a pertinent fact or otherwise add to the conversation before hitting "send" on a retweet.
Keep it short: Twitter limits tweets to 140 characters, but followers still appreciate conciseness. Using as few characters as possible also leaves room for longer, more satisfying comments on retweets.
Limit Twitter-specific syntax: Overuse of #hashtags, @mentions and abbreviations makes tweets hard to read. But some syntax is helpful; if posing a question, adding a hashtag helps everyone follow along.
Keep it to yourself: The clichéd "sandwich" tweets about pedestrian, personal details were largely disliked. Reviewers reserved a special hatred for Foursquare location check-ins.
Provide context: Tweets that are too short leave readers unable to understand their meaning. Simply linking to a blog or photo, without giving readers a reason to click on it, was described as "lame."
Don't whine: Negative sentiments and complaints were disliked.
Be a tease: News or professional organizations that want readers to click on their links need to hook the reader, not give away all of the news in the tweet itself.
The full article further explains the study based on 43k Tweets to find precisely what people like -- and loathe -- about Twitter.