This is a list of users of Xapian to allow quickly jotting down new links we come across without having to get distracted by updating the main website properly, for users to add their own links, and for projects are only at an experimental stage, or similar.

Periodically we'll sweep through entries listed below, dig out a bit more information if required, and add them to the main website.

Feel free to add entries below for both your own uses, and those of others. We'd love a reciprocal "powered by Xapian" or similar link to help spread the word. We're not making it a requirement to get listed, but as the list grows, we might use lack of such a link as a criteria for culling entries.

•  http://blog.musicbrainz.org/?p=331

•  http://code.google.com/p/mbxap/source/browse/

•  Pootle - app for translating messages in software and  Translate Toolkit

•  Open Shakespeare/Open Milton

•  phenny-speak

•  phpwiki

•  mu mail archive search

•  aptitude

•  TagFlow

•  Bayes-Swarm: MeanMachine - A research project to extract correlations between web sources.

•  MindBites - A self-publishing platform and social marketplace for instructional content (using acts_as_xapian according to the Readme for the latter)

•  Sphene Community Tools SCT 0.5 adds Comments support for wiki snips and a search engine for the forum based on Xapian.

•  itools.database is a NoSQL database written in Python that uses Xapian for all indexing / requesting purpose

•  ikaaro is a CMS written in Python that uses Xapian,  itws is its website generator declination and  perfect-sale its e-commerce version.

•  PenguinTV "podcast and video blogs for Linux"

•  Playfire Playfire is a social network designed entirely for video gamers.

•  http://www.assembla.com/ Tools and services for accelerating software development are  using Xapian.

•  Swish3 ( CPAN)

•  Serial Cooking Ruby powered

•  xapit High level Ruby library for interacting with a Xapian database

•  xapian-fu "A nicer Ruby interface for the Xapian full text indexer"

•  http://trespams.com/ -  uses django-xapian

•  http://www.radgs.com/22-concept-application-server.html -  with Xapian bindings

•  http://haystacksearch.org/ - Modular search for Django, with a choice of backends, including Xapian

•  http://www.idealist.org/ - Currently powers the site-wide search, we'll be moving to an all-xapian search backend with the release of our python-based site later this year

•  http://octavede.sourceforge.net/

•  http://www.vifasport.de/ - Virtual Library of Sports Science ( tech page,  blog entry)

•  Xapian search extension for Radiant CMS

•  kiwix

•  http://ubuntuusers.de - Community Website. Application: Official German Portal for Ubuntu Linux; Document Types: forum posts, wiki articles, blog entries, planet entries; Language: German; Database size: 6.8G, around 2.2M documents, average length 250 (2009-11-28)

•  http://notmuchmail.org/

•  http://wildlifenearyou.com/ - uses Xapian for search, including using the geospatial support.

•  http://sup.rubyforge.org/

•  http://blog.gamocracy.com/2010/03/new-games-search-engine-and-flow-options/ - the actual search seems to require registration though

•  http://github.com/ish/couchfti - Xapian integration for couchdb

•  http://spreecommerce.com/blog/2010/03/13/spree-0100-released/ - Spree e-commerce software

•  http://bibliographica.org/docs/ordf/ordf_handler_xapian.html

•  http://twitter.com/dbrewerpdx/statuses/8835497138

•  http://blog.drinsama.de/erich/en/web/2010020101-maps-calendar-mashup.html

•  http://hurl.hereticlinux.org/ - Heretic Linux package search uses Xapian (ironically they don't seem to have a package of Xapian)

•  http://www.ruby-blogs.com/about

•  http://www.enricozini.org/2010/debian/fuss-launcher/

•  http://www.saarbruecken.de - Official website of Saarbrücken, capital of the state of Saarland in Germany. Ruby and Xapian powered.

•  http://bitbucket.org/pelletier_michel/xodb/ - Experimental object persistence with xapian.

•  http://www.reportbuyer.com - Online shop for market research

•  Xapian search plugin for the  redmine project management web application

•  Xapian search module for the  Drupal content management system

•  Chamilo learning management system use it

•  The Django Project's doc search uses Xapian via haystack:  https://github.com/jacobian/djangoproject.com/commit/82276c1c35d7a3eb9853fff784ce9ec3774c00f3

•  FT Tilt is a premium online financial news and analysis service from the Financial Times, focused exclusively on the emerging world

•  http://clippings.ft.com/

•  MyHealthcare.com - Medical Search Engine powered by Xapian