Social bookmarking
Social Bookmarks (rarely also in the translated form: "Social Bookmarks" ) are Internet bookmarks that are stored by several users on a shared server on the Internet or on an intranet, so that they can access it together to share bookmarks with each other. The access to the service by default via a web browser; for some services, there are also special browser extensions to facilitate operation.
One speaks in this respect also from the Community Indexing of Internet sources. These usually called social bookmark networks are used mainly to gather links and news reports.
Providers, and functions
One of the largest providers in the English section include Delicious ( formerly del.icio.us), Digg, StumbleUpon and folkd. There are also purely German -language services, such as Linkarena Oneview and. Digg, which offered alongside the German surface its services in other languages , adjusted the social bookmarking functions on 1 August 2013. The German representatives who have specialized in the "bookmark " News, include Short News, Yahoo or YiGG. In addition, smaller portals have such as scoop.at developed in Austria, the make aware of a country-specific news relating to the fore in Germany.
Users can add their own bookmarks, delete, rate, comment, or with categories or keywords (English tags) provided. They also have insight into the bookmarks of other users, which can be transferred to your own collection. Social Bookmarks can list and search depending on the service by Keyword, Keywords combinations, categories, or users. In addition, there is in many cases a list of recently saved by all users bookmarks on the home page and a list of the most popular links. Each of these lists can be traced with the help of an RSS feed. Most providers of social bookmarks offer a collection of thematically related links and related tags. Other functions that do not exist, however, with all providers are group functions, e-mail and network functions between individual users, and export bookmarks files and search toolbars and extensions for various browsers.
Search Engine Optimization
Also with regard to search engine optimization Social Bookmarks can be interesting. They make it possible not only to make a website well-known, but may also contribute to additional backreferences. Linking various social bookmarking services on your own website on the other hand offers visitors the opportunity to put this site with a few clicks on their favorite social bookmark service as bookmarks and thus increases the likelihood that one's website is bookmarked. However, excessive submit your own website in various social bookmarking services is undesirable and is considered spam. Many such " self- advertiser" mistakenly believe that they can use social bookmarking services for free increase link popularity. In the eyes of the operators of social bookmarking services are not intended to serve as an advertising platform for user-specific Web sites, however. So many services prevent the follow-up of links that are provided by them with the nofollow attribute or be blocked by the Robots Exclusion Standard protocol.
On the other hand, this way of search engine optimization to the fact that some of these bookmarking services are built only as an optimization project of the operator. In this case, the registered bookmarks are seen only by very few users and are only for link building. Evident are these pure SEO projects at many entries that point to the same sites at low valuation numbers and a sluggish community.
Open Source Solutions
There are a number of open source solutions to social bookmarks, which can be installed on your own server, eg Unalog, Connotea, Scuttle or Pligg. With the CMS Joomla can also be created a bookmarking service.