XHTML Friends Network

From Wikipedia, the free encyclopedia

XHTML Friends Network (XFN) is a simple way to represent human relationships using hyperlinks developed by Global Multimedia Protocols Group. XFN enables web authors to indicate their relationship(s) to the people in their blogrolls simply by adding a 'rel' attribute to their <a href> tags, e.g.:

<a href="http://jeff.example.org" rel="friend met">

Contents 1 Introduction 2 Example 3 Live forums 4 See also 5 External links

[edit] Introduction

XFN puts a human face on linking. As more people have come online and begun to form social networks, services such as Technorati and Feedster have arisen in an attempt to show how the various nodes are connected. Such services are useful for discovering the mechanical connections between nodes, but they do not uncover the human relationships between the people responsible for the nodes.

XFN outlines the relationships between individuals by defining a small set of values that describe personal relationships. In HTML and XHTML documents, these are given as values for the rel attribute on a hyperlink. XFN allows authors to indicate which of the weblogs they read belong to friends, whom they've physically met, and other personal relationships. Using XFN values, which can be listed in any order, people can humanize their blogrolls and links pages, both of which have become a common feature of weblogs.

In sufficiently modern browsers, authors using XFN can easily style all links of a particular type; thus, friends could be boldfaced, co-workers italicized, and so on. It is also the hope of the authors that this practice becomes widespread enough to allow the creation of a service that charts personal (as opposed to purely mechanical) links between weblogs and the people responsible for them.

XFN was the first of many Microformats.

[edit] Example

A colleague of Jimmy Example could indicate that relationship by publishing a link on their site like this:

<a href="http://jimmy.examples.com/" rel="colleague">Jimmy Example</a>

[edit] Live forums

• Chat with experts on XFN.

[edit] See also

• microformats
• hCard
• Friend of a Friend
• Tantek Celik

[edit] External links

• XFN at the Global Multimedia Protocols Group
• XFN 1.1 Profile
• RubHub - XFN search engine and Top 10 lists
• XHTMLFriends.net - social network / geographic visualizer and search engine
• XFN creator Page to generate XFN hyperlinks
• Microformats 'wiki'.