Sitemaps are an easy way for webmasters to inform search engines about pages on their sites that are available for crawling. In its simplest form, a Sitemap is an XML file that lists URLs for a site along with additional metadata about each URL (when it was last updated, how often it usually changes, and how important it is, relative to other URLs in the site) so that search engines can more intelligently crawl the site.
Web crawlers usually discover pages from links within the site and from other sites. Sitemaps supplement this data to allow crawlers that support Sitemaps to pick up all URLs in the Sitemap and learn about those URLs using the associated metadata. Using the Sitemap protocol does not guarantee that web pages are included in search engines, but provides hints for web crawlers to do a better job of crawling your site.
Sitemap 0.90 is offered under the terms of the Attribution-ShareAlike Creative Commons License and has wide adoption, including support from Google, Yahoo!, and Microsoft.
Die Metasuche von Poikile.de bietet einen komfortablen Zugriff auf mehr als vier Millionen öffentlich frei zugängliche Bildnachweise zur Kunst aller Epochen und Länder. Das Angebot folgt der Philosophie, das Bildmaterial wissenschaftlicher und kommerzieller Bildarchive gleichermaßen für Lehre und Forschung sowie für alle Interessierten zugänglich zu machen.
Bei Europeana.eu geht es um Ideen und Inspiration. Europeana.eu verlinkt Sie zu 2 Millionen digitalen Objekten * Bildern – Gemälden, Zeichnungen, Karten, Fotografien und Bildern von Museumsobjekten * Texten – Büchern, Zeitungen, Briefen, Tagebüchern und Archivalien * Tonaufnahmen – Musik und Gesprochenes von Phonographenzylindern, Tonbändern, Schallplatten und aus Rundfunksendungen * Videos – Filme, Wochenschauen und Fernsehsendungen
The Open Text Mining Interface (OTMI) is an initiative from Nature Publishing Group (NPG). It aims to enable scholarly publishers, among others, to disclose their full text for indexing and text-mining purposes but without giving it away in a form that is
ANSI/NISO Z39.50 (=ISO 23950: "Information Retrieval (Z39.50): Application Service Definition and Protocol Specification") specifies a client/server-based protocol for
searching and retrieving information from remote databases.
...The search for data that does not yet exist becomes metadata that helps to create the new data it is proleptically about. The instrument created to search the Net replicates the Net over and over. Is the Internet different because of this?
I’m seeking ways to expand metadata hooks into new areas of my overall information management scheme...[excerpt from] tecosystems...because technology is just another ecosystem.