Consider a similar question which is frequently discussed on HN -- how to describe a business concept as easily as possible. One technique is to make comparison

Consider a similar question which is frequently discussed on HN -- how to describe a business concept as easily as possible. One technique is to make comparisons to existing businesses that are fairly well understood. For example, YouTube was described as "the flickr of video" (see http://slashdot.org/articles/05/08/14/1320217.shtml http://slashdot.org/articles/05/08/14/1320217.shtml - from 2005) in its early days.