A virtual community like Long Beach Culture.org drives a tremendous amount of traffic. That means as advertisers, you'll have a good deal of exposure for your product and/or service when you advertise in Long Beach Culture.org.
CONVERSION; 20,000 visits X 1 -5% click-thru* = 200 - 1,000 highly targeted audience X 5% conversion to sales = 10 - 100 probable sales.
*Click-through ratio (CTR): A method of rating how many times a banner is clicked on. A ratio of the number of times a banner is shown to the number of times it is clicked on. For example, if a banner has a CTR of 20:1, it means that 1 out of 20 people have clicked on it (i.e. 5% of the people who viewed it).
A CTR is merely a ratio of exposures to via a banner. In an economic model, the CTR is a of advertising (the banner exposures). Judging the effectiveness of a CTR then becomes a reaction of advertising vs. revenue. A good CTR is dependent upon many factors, including the banner design and the content of the web site the banner is supposed to represent.