Every day hundreds of creatives, graphic designers and copywriters around the world take part in One Minute Briefs (OMB) a social media challenge to create an advertising concept in under 60 seconds. OMB is now so big that brands and charities are now asking to be involved. Ideas are quickly visualised and shared amongst this growing international online community. The best advert concepts are deemed OMB Winners, and the best of the best make it into the OMB Yearbook. Here are some of our entries.