Carr's first autobiographical book Bringing Nothing To The Party - True Confessions Of A New Media Whore was published by Weidenfeld & Nicolson in 2008. It tells the story of "a unique group of hard-partying, high-achieving young entrepreneurs - and [Carr's] attempts to join them, whatever the cost.". According to one review, the book follows Carr's "journey from gonzo journalist, to accidental business owner, to accidental web business mogul, to very-near-jailbird, to working out what actually makes him happy in life."

On 19 December 2009 Carr, in a controversial move, decided to release Bringing Nothing To The Party as a free ebook download on TechCrunch. Carr is one of the first in the field to give away a published book as a free download, as most publishers specifically prohibit this. However, Carr owns the rights to the US version of the book (which is available on the Kindle), but wanted to appeal to those who didn't have a Kindle and wanted to read it. Carr decided to release his book online despite the fact that people geographically elsewhere might also download it (This is a problem because his publisher's parent company owns the digital rights to the book outside of North America.) The ebook can also be downloaded directly from Carr's website.

In 2010, it was reported that Weidenfeld & Nicolson would publish a second book by Carr (in November 2010), titled The Kings Of The Road Club. The book tells the story of how, after the events described in Bringing Nothing To The Party, Carr, "decides to sell most of his possessions, abandon his old life and live entirely in upscale hotels - as a modern-day nomad." The book describes Carr's physical travels to the USA - and countries including Spain, France, Germany, Canada and Iceland - as well as his personal journey, documenting Carr's battles with alcohol and subsequent attempt to give up drinking. .

Carr writes a blog on which he writes about his life, work and his travels around the world as a technomad. The site also contains video and audio content.

In 2001, while studying law at university, Carr co-founded and Edited the award-winning satirical "comment sheet" The Friday Thing..

In 2002, The Christian Scientist described Carr as a "latter day Jonathan Swift" following the publication of his satirical anti-vigilante manifesto "Think of the Children". In the same year, Carr co-founded the London city guide, London by London.

He has also written for television, most recently for Alison Jackson's Doubletake series.

In July 2009 it was announced that Carr will be writing a weekly column for technology news site TechCrunch and also blogging regularly for the Telegraph newspaper.

Prior to joining TechCrunch, Carr wrote his weekly column for The Guardian newspaper, where it was entitled Not Safe For Work and followed his adventures in the technology industry. Between 2003-2005 he wrote a regular new media column for Media Guardian .

Carr has also authored a series of nine web guide books for Prentice Hall as well as co-authoring The Unofficial Guide To Second Life published by Pan Macmillan (UK) and St Martin's Press (US) in 2007.

Carr was a regular user of Twitter, but deleted his account in August 2010 to focus on blogging

In 2005, along with Clare Christian, Carr co-founded The Friday Project, a book publishing house specialising in finding material on the web and then turning it into traditional books.

Carr left The Friday Project in December 2006 along with Online Editor, Karl Webster, to lead a buy-out of the company's Internet media arm, which lead to the founding of online city site, Fridaycities.com. Carr left Fridaycities in 2007, when the site rebranded as Kudocities.. He later described himself as "NSFW" (Not Safe For Work)..