Echoing the optimism of early Nineties web culture, Flickr sprung onto the scene in 2004 and became the defining Web 2.0 app. Christian Hall caught up with co-founder Caterina Fake and discovered what the future holds for Flickr

Navigating the internet is a tough task, even with a search engine. That’s why Garrett Camp and his colleagues set up StumbleUpon.com, a more sociable way to find new sites

Virtual 3D world Second Life recently reached one million sign-ups, and its economy is growing faster than some real countries. Oliver Lindberg talked to its founder, Philip Rosedale, and discovered his vision of a world where everybody has a second life

How do you go from “broke programmer” to CEO and co-founder of BitTorrent? Will the new, legitimate, online video store take off? Bram Cohen takes time out from his coding, recreational maths, juggling and origami to be quizzed by .net’s Oliver Lindberg

In August, former “MySpace killer” Virb relaunched as a slick website builder and host. Oliver Lindberg talks to co-founder and CEO Brad Smith about the change of direction and future developments

Amazon Web Services consume more bandwidth than all of Amazon’s global sites combined. Evangelist Jeff Barr explains who’s using them and why they’ve become so popular with businesses of all sizes

Six Apart’s David Recordon co-invented OpenID, which enables you to sign in to thousands of online services with the same digital identity. He talks to Oliver Lindberg about its latest developments

Media Temple is arguably the most popular hosting company for digital creatives. Oliver Lindberg talks to Chris Lea, lead architect on social network Virb, which Media Temple acquired about a year ago

Since the acquisition by Google, YouTube’s founders have kept a low profile. Now they’re back. In an exclusive interview, .net’s Oliver Lindberg talks to Steve Chen and Chad Hurley about the past, present and future of the world’s biggest video-sharing site

It may operate in murky waters, but there’s no denying it’s given  the music and film industries a run for their money. Oliver  Lindberg speaks to Peter Sunde, administrator of one of the web’s most notorious sites, The Pirate Bay

Launched from Pete Cashmore’s home in 2005, Mashable now gets 5m page views a month and is poised to overtake TechCrunch. He talks to Oliver Lindberg about redesigns, micro-content and joining the social conversation

They’ve been fairly quiet since the high-profile acquisition by CBS, but this doesn’t mean that Last.fm’s team hasn’t been busy. Oliver Lindberg talks to Martin Stiksel, the co-founder and chief controlling officer of Last.fm

They call him the hardest working man in podcasting. Now he’s extended his TWiT empire to include a live, hi-res video stream. Oliver Lindberg talks to the one and only Leo Laporte about being the glue that holds together an online community

Digg is the world’s most popular user-generated news site. A recent revolt showed that it really is run by its community. Founder Kevin Rose tells Oliver Lindberg how he experienced the most turbulent day in Digg’s history, and what his users want him to do next

Wikipedia revolutionised the way we look for information. Now its founder has got his eyes on the search market. Oliver Lindberg talks to one of the web’s most colourful players, Jimmy Wales, about his forthcoming people-powered open source search engine

Online classified advertising site Craigslist is run more as a public service than for profit – a philosophy that’s led to war with eBay. Oliver Lindberg talks to chief executive Jim Buckmaster about one of the internet’s most unlikely success stories

eBay may not be too happy about the performance of Skype, but its co-founders have moved on to promising new ventures. Janus Friis tells Oliver Lindberg why online TV service Joost is all set to revolutionise the way we watch television

Threadless uses the power of crowdsourcing to sell more than 100,000 T-shirts a month. Company founder Jake Nickell talks to Oliver Lindberg about how he turned a simple hobby into a multimillion dollar business empire