Its business model is similar to Adobe 's Acrobat and Flash strategy of charging for development tools but providing a free reader .
The Demonstrations Project also has similarities to user - generated content websites like Wikipedia and Flickr .
Demonstrations Project 's business model is similar to Adobe 's Acrobat and Flash strategy of charging for development tools but providing a free reader .
The Demonstrations Project also has similarities to user - generated content websites like Wikipedia and Flickr .