Microsoft has introduced its Your App Here marketing campaign to help Windows Phone developers promote their apps more effectively. The programme will select up to seven apps per month which will then be promoted through banner ads and up to one million ad impressions on the MSN website network, funded by Windows Phone. Winning apps will also be featured on Windows Phone Marketplace. The Your App Here initiative will take place in the US from December until February, with submissions for December’s round closing on 25 October.