wiki Wiki is a collaborative writing tool for people. Wiki sites can have many (or any visitors) to maintain, everyone can express their views, or on the common themes or extensions of. Wiki refers to a hypertext system. This community-oriented hypertext system to support collaborative writing, but also includes a set of auxiliary tools to support such writing. Some people think that, Wiki system is a kind of grid system of human knowledge, we can based on the Wiki Web browse the text, create, change, and create, modify, publish HTML text smaller than the costs; also Wiki system also supports community-oriented collaborative writing, collaborative writing to provide the necessary assistance; Finally, Wiki&#39;s writers naturally form a community, Wiki system for the community to provide simple communication tool. Compared with other hypertext systems, Wiki features a user-friendly and open, so Wiki system can help us in certain areas of a community to share knowledge. Wiki source Wiki word from the Hawaiian word for &quot;wee kee wee kee&quot;, this is the &quot;Hurry up hurry up&quot; means. 1995, Ward Cunningham (Ward Cunningham) To facilitate the exchange of model community created the world&#39;s first wiki system - WikiWikiWeb, and used it to build the Portland Pattern Knowledge (Portland Pattern Repository). In the process of establishing this system, Ward Cunningham created the Wiki concept and name, and realized the service system to support these concepts. The system is the first Wiki system. From 1996 to 2000, Portland model knowledge base around community-oriented collaborative writing, some to support the continuous development of auxiliary tools such writing, so that the concept of Wiki constantly enriched. Meanwhile Wiki concept has also been spread, there were many similar sites and software systems. Wiki features ◎ easy to use Maintain fast: fast to create, access, change the hypertext pages (this is called Wei Shiyao &quot;wiki wiki&quot; for reasons). Format is simple: use simple HTML formatting tags to replace the complex formatting tags. (Similar to the WYSIWYG style) Links convenience: a simple tag, keyword names directly to create a link (page, external connections, images, etc.). Naming easy: Keyword Name is the page name, and was placed in a single layer, flat name space. ◎ organized Self-organization: the same page contents, the entire organizational structure of hypertext is to make changes and evolution. Can be brought together: the system to repeat the page number of the content can be brought together in one of these, the corresponding link structure also changed. ◎ could increase To growth: the page link target can not exist, by clicking on the link, we can create these pages so that the system be increased. Amendment History: Record of the page revision history, each version of the page can be accessed. ◎ Open Open: any community members can create, modify, delete pages. Can be observed: the system changes the page the visitor can be observed. Wiki Technology and specification Wiki is that anyone can edit pages. Normal display of each page has an edit button below, click on the button you can edit the page the. Some people ask: anyone can edit? What went wrong was not? Is not true, Wiki embodies a philosophy: &quot;In the Beginning, of the good.&quot; Wiki do not think vandalism Wiki Web site, you edit the page in order to participate. Even so, many still can not help but wonder who inadvertently change the Wiki site, then to maintain the accuracy of the site, Wiki in the technical and operational rules to do some norms do not only support the principle of mass public participation Also minimize the risks of many participants. These technologies and specifications include: 1. Reservation page changes each time the version: if participants will delete the entire page, administrators will also be very easy to recover from the record the most accurate version of the page. 2. Page lock: some of the main page content can be locked with a locking technology, outsiders would no longer be edited. (Although the Wiki has this feature, but I see very little use of it, which may run counter to the spirit of advocacy with the Wiki it). 3. Version Comparison: Wiki sites have updated records on each page, between any two versions can be compared, Wiki will automatically identify their differences. 4. Update Description: Do you update a page at a time when you can write a few words describe the column, such as your basis for updates, or dialogue with the administrator. This administrator will know the situation you update the page. 5. IP ban: Despite the Wiki advocate &quot;In the Beginning, of the good&quot;, everyone can participate, but the destroyer, the trickster is always there, Wiki has a record and archive functions of IP, the IP will be a record of spoilers He can not perpetrate the. 6. Sand Box (sandbox) test: the general had built a Wiki Sand Box page, this page is to allow first-time participants in the Sand Box page to do a first test, Sand Box and the same general page, where you can any graffiti, random testing. 7. Edit rules: any one have an open Wiki editing rules, which indicates the Wiki site all the rules of construction and maintenance. No rules no standards of truth is applicable anywhere. Wiki system, the world&#39;s largest Wikipedia (http://www.wikipedia.org) is the world&#39;s largest Wiki system, it is based on Wiki and GNU FDL (GFDL) encyclopedia web site system, dedicated to creating open-content encyclopedia. The system was put into operation in January 2001, February 2001 more than 1,000 article entries in July 2001 over 10,000 article entries, to March 2005, more than 500,000 entries in English article. Wikipedia article describes the rapid growth of Wikipedia robust system, but also illustrates the concept of Wiki withstand examination. ? ? ? According to Wikipedia&#39;s explanation, &quot;social networks (Social Networking: SN)&quot; refers to the network of relationships between individuals. Social network is not profound, it is the theoretical basis of &quot;six degrees of separation.&quot; The social software is based on the real value of social network software and services. According to some non-system analysis, social networks (or social networks) from six degrees of separation theory (Six Degrees of Separation) and 150 rule (Rule Of 150). Six degrees of separation American social psychologist Milgram (Stanley Milgram) in the 20th century, first proposed 60 years: &quot;You and the interval between any stranger who will not be more than six, that is, up to six people you through any stranger can understand. &quot; Six degrees of separation from the American social psychologist Milgram (Stanley Milgram) in the 20th century, first proposed 60 years. In 1967, Harvard University psychology professor Stanley Milgram (1933-1984) who want to describe a link with the community network of interpersonal ties. Done a chain letter experiment found that the &quot;six degrees of separation&quot; phenomenon. Have such a story, a German newspaper a few years ago to accept a challenge, to help in Frankfurt, a Turkish barbecue restaurant owner, found him and his favorite movie star Marlon Brando&#39;s association. Results After a few months, the newspaper found that only after the two men not more than six personal friend, on the establishment of personal connections. The original owner of the Iraqi immigrants barbecue restaurant, had a friend living in California, just friends, colleagues this is the movie &quot;The man bit color,&quot; the daughter of producer associations in women&#39;s sworn sister&#39;s boyfriend, and Marlon Brando starred in the film. You might think this is just a special case, but a psychology professor at Harvard University in 1967, Stanley Milgram conducted experiments in a chain letter, also came to this conclusion. Columbia University, the modern version is used today, E-mail to the same experiment. Some scientists even deduce from this phenomenon of a mathematical model can be assessed. You may not know Bill Clinton, but in the case of optimization, you only need six people can get to know him. &quot;Six degrees of separation&quot; shows some of the community in the common &quot;weak link&quot; relationship, but a very strong role to play. Many people looking for work will appreciate the effect of such weak links. The abstruse theory attracted mathematicians, physicists and computer scientists have to research found that many other networks in the world have very similar structures. For example, social network and the WWW is almost exactly the same structure, hypertext link through the network of economic activity in the network of business contacts, in the ecosystem food chain, and even the human brain neurons, and molecular interactions within the cell network, with full the same organizational structure. No matter how esoteric theory, &quot;Six Degrees of Separation&quot; and the close combination of the Internet, has begun to reveal business value. People are increasingly concerned in recent years, studies of social networks, many network software also begun to support people to build more trust and strong social relevance, such software is referred to as &quot;social software&quot; (Social Software). Such as Blog is a social software, for Blog writing and continuity of personality needed to have made such a typical feather flock together Blogger Quan ecological forms, more and more like real life of interpersonal circle. It is working on introducing social software Issac Mao, now more popular abroad is a fast friends, or business contact tools, such as LinkedIN. People can more easily find and own the world who share common hobbies and interests, business opportunities easier to find, easier to reach understanding between different ethnic groups and exchanges, and so on. By acquaintances between, through &quot;six degrees of separation&quot; resulting polymerization, will result in a trusted network, which is indeed one of the commercial potential is immeasurable. Polymerization as the object of social research also has practical value. Cornell University scientists have developed an algorithm that can identify an article in some of the words &quot;unexpected&quot; growth, and these &quot;unexpected&quot; growth of the text can be used to quickly identify the most recent trends and hot issues, so can more effective screening of important information. The past, many search words are calculated using a simple / phrase frequency approach, ignore the words used to increase the rate. If this method is applied to advertising, you can quickly find the potential demand for fashion. Social, network, regional, business, Blog, heard these words you might numb. But once people find opportunities to those expected aggregate value of their business was changing more than just the online world. Rule 150 Originated from Europe, &quot;Hurt Brotherhood&quot; is a spontaneous self-organization of farmers, these organizations play in maintaining an important role in folk customs. Interestingly, they have an unwritten strict rules: Every time lived more than 150 people in size and they put it into two, then their development. &quot;The crowd of 150 people in the following seemed to crowd one of the best and most effective way.&quot; 150 rules in real life applications is very wide. Such as China Mobile&#39;s &quot;Mobile Zone&quot; sim card can save 150 phone number, Microsoft&#39;s chat &quot;MSN&quot; (also a SS) can only be a corresponding 150 MSN contacts. 150 become generally accepted, &quot;we can maintain a maximum number of social relations.&quot; No matter how many people you once knew, or through a number of social networking services and to establish a weak link, that link is still strong in this times at the moment found 150 laws. This is also in line with &quot;28&quot; rule, that 80% of the social activities may be 150 strong link in the country.