For the brand, it’s a double win: people creating the ads are also making their bond with that brand stronger, and the ads themselves are content and might even be good enough to use in actual campaigns.
For the ad creators, it’s also a double win: they can show their creativity to the world, and also get paid (money, prizes) if their creations are successful.
A marketplace or platform for people to publish ads they create for their favorite brands. These can be in any form or size, text, image, video, etc. A brand can ask for ads, create competitions, offer prizes, etc., or just pick and choose from ads that people just made without any brand initiation. Brands choose ads to use in their campaigns and can even use all the ads as content.
If you are interested in graffiti and would like to follow new occurrences near you.
Crowdsourced photos of graffiti on a map (as an overlay.) Participants use their phone camera to upload geotagged photos of graffiti they see. You can also subscribe to alerts of new graffiti in your area.