Media innovators worldwide are invited to submit their ideas to a media marketing innovation contest being run by the UK's The Economist magazine.

Interested participants should submit ideas -- such as a new interface, electronic reader, social media idea, mobile device or other novel new way for people to interact with media -- by September 22.

Twelve finalists will present their innovations at the Media Covergence Forum in New York City on October 20 and 21. A winner will be announced October 21, based on an audience vote.

For more information, click here. Entries should be submitted to mediaconvergencedemos@economist.com