Pope takes to Twitter to reach his flock

Tweets from Benedict XVI's personal account won't always be written by the pope himself, but will always be approved by him

Gregg Jevin: imaginary comic’s ‘death’ tops Twitter trends

Twittersphere dominated by tributes to fictional character killed off by his creator, comedian Michael Legge

#iamspartacus: Twitter’s gesture of solidarity returns to fight the #NHSbill

Once, tweeters used the hashtag to support a man who joked about an airport – now they're defending the NHS

Nicky Clark: the accidental activist battling disability hate crime

She took on Ricky Gervais on Twitter and won. Now Nicky Clark's new films show disabled celebrities fighting stigma

Noises off: How topical is too topical?

Matt Trueman: Theatre can turn around a piece on topical issues quicker than most art forms – but, asks the blogosphere, what's wrong with a bit of critical distance?

Twitter user dines out on BBC canteen gossip

Media Monkey: The Killing Station is a 'well-informed' Twitter account with intimate knowledge of the BBC canteen

Don’t ‘quote’ me on that

Suddenly, quotation marks are turning up in all the wrong places – but one blog is out to show misusers the error of their ways

Don’t ignore Twitter’s power to scoop, but it’s not a full news rival

Twitter wins the race for eyeballs with breaking stories that won't hold for long, but can't do a full report on a famine in Darfur

Consent of the Networked: The Worldwide Struggle for Internet Freedom by Rebecca MacKinnon – review

John Kampfner applauds a study of the threats to liberty in the online age

Noises off: When critics become trolls

Matt Trueman: This week online, a row in Australia begs the question: when bloggers slag off theatre is it trolling or fair dinkum?

For police blogger NightJack, it wasn’t a fair cop

He won an Orwell prize for his writing. But since being identified against his wishes as NightJack, detective constable Richard Horton hasn't penned another word

Street style: how I learned the art of fashion blogging

What does it take to be a top blogging fashion photographer? Tom Lamont gets a lesson from Wayne Tippetts

David Karp, founder of Tumblr, on realising his dream

The chief executive of one of the fastest-growing startups on the internet says he lied about his age and experience to woo clients. By Josh Halliday