Facebook narrowly avoids dip below starting price in mixed first day of IPO

Social network giant ends day at $38.23 (£24), up just 0.61% from its starting price after share sale got off to a messy start

Facebook’s IPO and the new tech bubble

Michael Wolff: There's no doubt the Facebook IPO is symptomatic of a new tech bubble. The only question is when will it burst

Twitter to use Do Not Track

Social network to honour requests from users who do not want online behaviour recorded – unlike Google and Facebook. By Charles Arthur

Facebook IPO: the key players and what they are worth

Mark Zuckerberg isn't the only one who stands to gain big on Friday. Here are the other early adopters with a piece of the pie

A week on the web: Blue Peter moved from BBC1

Children's TV show Blue Peter will no longer be broadcast on BBC1, the BBC announced on Wednesday. Twitter went into a nostalgia-soaked meltdown

Pinterest valued at more than $1bn after raising $100m funding

Popular social network valued at between $1bn and $1.5bn following a $100m round of funding. By Charles Arthur

How the kindness of (virtual) strangers on Twitter saved my day

Momtaz Begum-Hossain: You told us: After Twitter followers helped me remove a BNP banner from my street on election day, it's my first port of call from now on

Facebook: a tale of two media models

Michael Wolff: The irony of the Facebook epoch is that old media covets its IPO billions, while new social media envies the old's content

Five steps to becoming a heavyweight Twitter fighter

Sarah Ditum: You told us: Learn how to be a master of public pugnacity a la Giles Coren or an expert in online exasperation, just like Joey Barton

Facebook raises price range ahead of IPO

Social network has raised price target to $34-$38 a share, potentially valuing the company at more than $100bn. By Charles Arthur

The secret to tweeting

Twitter isn't solely for media types – an online presence can help in all types of job

Facebook App Center to herald launch of first paid apps on social network

Cross-platform store will take user ratings into account when deciding whether to list apps. By Stuart Dredge

How new technology is helping deliver sexual health services

Text services, apps and social media are being used to provide advice and information to young people. Rachel Williams reports

Mobile social game giants GREE and DeNA report sharp financial growth

Japanese publishers rack up £676m of combined revenues in first three months of 2012 alone. By Stuart Dredge

Fandom matters: writers must respect their followers or pay with their careers

Damien Walter: Science fiction authors have long understood the power of a solid fanbase. Mainstream writers, take note

Computer says yes: sync your life to save time

There are apps that claim to make cleaning fun and websites that will catalogue the contents of your bookshelves. Oliver Burkeman on a very modern way to organise your life

Juicegate and my Twitter redemption

Michael Wolff: Or, how the magic of micro-blogging made a cool story out of an obnoxious know-it-all trying to take his drink into a movie theater

Thousands join girl in urging Seventeen magazine to publish unedited images

Julia Bluhm, 14, a ballet dancer and aspiring activist, says she'd like one spread a month that shows bodies that aren't 'fake'

The dark side of IAP: EA shuts down Rock Band for iPhone

Stuart Dredge: Decision to make music game unplayable is controversial, but it's not the only example

Facebook IPO set for 18 May

Mark Zuckerberg to join Facebook IPO roadshow ahead of company stock market float on 18 May. By Charles Arthur

Organising against the enemies of internet freedom

Naomi Wolf: There are powerful state and corporate interests ranged against an open internet. We need a global movement to check them

Zynga adds 9m mobile users in Q1 as smartphone and tablet bets pay off

Reflects increased emphasis on phones and tablets across the social games industry. By Stuart Dredge

A week on the web: Rupert Murdoch at the Leveson inquiry

The eyes of the world were on media mogul Rupert Murdoch this week as he gave several hours of sometimes surprising testimony to the Leveson inquiry. He denied many things, but revealed a lot in the process. Here's a taste of the online reaction

Gawker unveils new comments system and Nick Denton immediately uses it to pick fight with BuzzFeed

After users accuse him of trying to emulate BuzzFeed, Denton jumps into the fray to accuse rival Jonah Peretti of 'stunt' tactics

Simon Amstell’s Twitter travails take a fresh twist

Jessie Cave: The project to beef up the comedian's social media presence suffered a blow when he was unfollowed by his own co-writer

Former spy chief calls for laws on online snooping

Sir David Omand says ability of security agencies to intercept social media must be placed on clear legal footing

How to download your data from Google and Facebook

From Subject Access Requests to online web tools, there are several ways to gain the information held about you

Theatre turns to Facebook to bring a younger audience through the doors

Rupert Goold, who directed the play Enron, says his new trailer can exploit the reach of social media

Online identity: is authenticity or anonymity more important?

Facebook and Google want to link online and offline personas, while 4Chan and other social sites prefer people to play with the freedom of pseudonyms