in 2009; their estimated revenue was US$800 million in 2009. In 2010, it was reported that there were more than 200 social networking websites on the web. Business impacts Companies such as Jive Software and IBM have recently been doing research to see how social networking can impact enterprise networks. Different companies have embraced social networking and they are creating their own internal social networking sites. IBM is one example and they have created the Beehive research project, based on their Lotus Connections product. Another example is Atos, which is deploying its in-house blueKiwi product across all 76,000 employees to achieve its Zero Email ambition by the end of 2013. Many companies are encouraging employees to use their social networks so they can connect with other employees, help people socialize when they take a break, or even help contribute to other work-related issues. Some companies are even joining typical social networking sites like Facebook or MySpace to gain more clients, communicate with their clients, or target individuals based on their likes. These companies want to gain the trust of their clients. Applications The year 2009 saw 92% of Inc. 500 companies using at least one social media channel, a dramatic increase over the 77% reported in 2008. Medpedia is one of about 70 medical wikis that allows physicians and researchers to share information. While the information is free and publicly available, contributions are limited to those provided by medical professionals. Intellipedia is a set of three wikis used by the US intelligence community to share information of varying classifications. Deloitte has been a pioneer in its use of the corporate social networking applications for consulting. Boral Limited was one of the first major building and construction materials companies in Australia to adopt Enterprise Social Networking using the Yammer platform. Engagement levels of over 25% were achieved. Other notable uses include Lockheed Martin and Pfizer as documented by the Queensland University of Technology (QUT). The adoption of social networking in sales organizations has recently been given a new name, S2.0 or Sales 2.0. Implementing a private sales social network provides a means to quickly disburse company sales knowledge. Smart companies are using social media tools to outsource their work to their customers. In addition to using social networking to market the enterprise, companies are involving customers in the design process. Chicago company Threadless invites their customers to submit their T-shirt designs