Digg, Reddit, and StumbleUpon showed how users could generate content themselves and make the overall community more valuable.

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Tellagami is an iOS app that makes it fast and fun for users to generate video content on mobile devices.

FORBES: Tellagami Makes Fast, Fun User Generated Video Content For The Mobile Generation

Users of WordPerfect Office 2000 can generate content with the WordPerfect word processor or with Trellix and with NetDocs, Tomey explained.

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Because Viacom does not make them easily available on its own sites and thus, says Google, is missing a chance to connect with users, promote its content and generate advertising revenue.

ECONOMIST: Viacom and YouTube

YouTube told the Financial Times that it had "nothing to announce" regarding channel subscriptions but was "looking into creating a subscription platform that could bring even more great content to YouTube for our users to enjoy and provide our creators with another vehicle to generate revenue from their content, beyond the rental and ad-supported models we offer".

CNN: SHARE THIS

Since most Chinese are just discovering digital video, says Mr Koo, users generate only about a quarter of Youku's content.

ECONOMIST: Chinese internet companies

However, Amazon expects to generate increasing amounts of revenue by selling digital content to the Kindle users and through advertising services like these.

FORBES: Amazon Plans To Sell Ads On The Kindle Fire