== C == == CDN == CDN, or ''Content Delivery Network'' is a term used to describe a system of computers networked together across the Internet that cooperate transparently to deliver content (media content like audio and vieo) to end users. CDN nodes are deployed in multiple locations, often over multiple backbones. These nodes cooperate with each other to satisfy requests for content by end users, transparently moving content behind the scenes to optimize the delivery process. Optimization can take the form of reducing bandwidth costs, improving end-user performance, or both. ''Paraphrased from [http://en.wikipedia.org Wikipedia]'' == E == == Enclosure == An enclosure is an element of your [[Glossary#RSS | RSS Feed]] which refers to a media file ''enclosed'' in the [[Glossary#Post | post]]. == Episode == ''(See [[Glossary#Post | Post]])'' == P == == Post == A post (also known as an ''episode'') is one item on your blog page / rss feed. A post can be a blog / text only post, or a media / podcast post (which contains an [[Glossary#enclosure | enclosure]]) == R == == RSS == RSS is a family of XML file formats for Web syndication used by (amongst other things) news websites and weblogs. The abbreviation is used to refer to the following standards: * Rich Site Summary (RSS 0.91) * RDF Site Summary (RSS 0.9 and 1.0) * Really Simple Syndication (RSS 2.0) The technology of RSS allows Internet users to subscribe to websites that have provided RSS feeds; these are typically sites that change or add content regularly. To use this technology, site owners create or obtain specialized software (such as a content management system) which, in the machine-readable XML format, presents new articles in a list, giving a line or two of each article and a link to the full article or post. Unlike subscriptions to many printed newspapers and magazines, most RSS subscriptions are free. The RSS formats provide web content or summaries of web content together with links to the full versions of the content, and other meta-data. This information is delivered as an XML file called an RSS feed, webfeed, RSS stream, or RSS channel. In addition to facilitating syndication, RSS allows a website's frequent readers to track updates on the site using an aggregator. ''From TheFreeDictionary [http://encyclopedia.tfd.com/rss] == X == == XML == The Extensible Markup Language (XML) is a W3C-recommended general-purpose markup language for creating special-purpose markup languages, capable of describing many different kinds of data. It is a simplified subset of SGML. Its primary purpose is to facilitate the sharing of data across different systems, particularly systems connected via the Internet. Languages based on XML (for example, RDF/XML, RSS, MathML, XHTML, SVG, MusicXML and cXML) are defined in a formal way, allowing programs to modify and validate documents in these languages without prior knowledge of their form. ''From TheFreeDictionary [http://encyclopedia.tfd.com/xml]