Less than a year old, 43 Things opened for business on January 1, 2005. On August 19, 2005; they registered their 10,000th user. As of November 25, the site had 141,274 registered users from at least 3,706 cities (from home page). Part of this growth is due to recent press. Growth could also have occured because 43 Things won the 2005 Webby Award for Social Networking in May, 2005.
43 Things was founded by former Amazon.com developers who built off their prior experience working with Amazon's recommendation systems. In fact, according to an article in "The Deal.com", 6 out of 7 of the company founders worked on the team that developed Amazon's recommendation and personalization engines. These seven guys named their company The Robot Co-op. They also created 43 Places and 43 People, which run parallel to and are partially integrated with 43 Things. 43 Places allows users to list 43 places they want to visit and 43 they have visited, while 43 People allows users to create a list of 43 people they want to meet and 43 they have met.
43 Things also hosts Google's targeted text-based advertisements. Ideally, advertisments will be relevant to users listed goals.
In the next section, we will examine the usability of 43 Things.