The positive mood of tweets varies with time of day and season, but it's consistently higher in parks than in built-up areas, where people are more likely to express anger and fears.
Twitter can be a useful tool in trying to predict what people think on an issue. So why did a study of almost half a million tweets on the same-sex marriage survey get it wrong?
Twitter is trialing 280-character tweet limits - but will it help its flawed business model?
Some may say it's far fetched to compare a 1970s African dictator with the President of the United States. But the similarities between Idi Amin and Donald Trump are quite startling.
Donald Trump is reinventing the royal fiat by novel means: the rule-by-tweet, or 'twiat'. This move is not an extension of popular democracy, but its enemy, and it needs to be resisted.
The law says official presidential records must be preserved. How do tweets figure in – particularly when they're altered or deleted?
Tweet-shaming from politicians isn't the best way to regulate companies – it hurts investments, shareholders and ultimately the economy.
On Twitter's 10th birthday, we look at how researchers have used the platform for a range of studies, from predicting the next flu outbreak to identifying the happiest city in America.
It's that time of the year when students get ready to enroll in college. But many don't, even after being accepted. What can be done?
Much of the way people use Twitter has been determined by the users of the social media giant. So why all the upset at talk of allowing tweets beyond the current 140 character limit?
The social media company seems to be mulling a massive increase in tweet length from the iconic 140 characters users have grown accustomed to.