This is a collection of resources that talk about Solr, or provide case studies of using Solr. People should feel free to add any publicly available information they find about Solr.
Contents
Books
Books Specifically About Solr...
Solr in Action - by Trey Grainger and Timothy Potter. Covers Solr 4.0, published by Manning Publications.
Apache Solr 3 Enterprise Search Server by David Smiley and Eric Pugh. This is the 2nd edition of the first book, published by Packt. Essential reading for developers, this book covers nearly every feature up thru Solr 3.4.
Solr 3.1 Cookbook - by Rafał Kuć (Errata)
Solr 4.0 Cookbook - by Rafał Kuć (Errata)
Introduction to Apache Solr (in Japanese) by Koji Sekiguchi, Jun Otani, Yasuo Sanbe, Kouhei Takeda and Takeshi Nakano. This book is an essential guide for Japanese speaking new Solr users.
Solr 1.4 Enterprise Search Server by David Smiley and Eric Pugh. The first comprehensive resource guide on Solr, written and tested for the 1.4 version.
Other Useful books on Lucene, Text Processing, Search algorithms, etc...
Lucene and Solr: The Definitive Guide by Jason Rutherglen, Ryan Tabora and Jack Krupansky. Guide to Lucene architecture and Solr applications. Also covers Solr/Hadoop integration.
Lucene in Action, by Erik Hatcher and Otis Gospodnetić
Taming Text, by Grant Ingersoll and Tom Morton. Chapter on search (using Solr) and also presents "text taming" tools (clustering, Named Entity Recognition, etc.) in the context of Solr.
Product Sheets
Apache Solr 3.1 Product Sheet (By Cominvent, CC-by-sa license, feel free to edit.)
Solr flyer (By Lucid Imagination)
Solr Architecture diagram on Google Docs (By Cominvent, CC-by license)
Articles
Text Search, your Database or Solr at packtbub (2009-12-01) by David Smiley (a Solr book author)
Solr: Indexing XML with Lucene and REST at XML.com (2006-08-09)
An open source endeca? Solr, patacriticism and faceted browsing at biblio.org (2006-05-25)
Two part series on Solr at IBM developerWorks titled "Search smarter with Apache Solr":
Essential features and the Solr schema (2007-05-29)
Solr for the enterprise (2007-06-05)
Solr in Libraries A round-up of experimental library catalog projects using Solr from Ryan Eby, (2007-04-26)
Enterprise search with PHP and Apache Solr at IBM developerWorks (2008-01-15)
What's new with Apache Solr - Coverage of new features and capabilities in Solr 1.3 by Grant Ingersoll. (2008-11-04)
Faceted Search with Solr (by Yonik Seeley)
(Published: January 2009 - article)Content Extraction with Apache Tika and Solr (by Sami Siren)
(Published: January 2009 - article)Optimizing Findability in Lucene and Solr (by Grant Ingersoll)
(Published: January 2009 - article)Debugging Relevance Issues in Search (by Grant Ingersoll)
(Published: January 2009 - article)Introduction to Apache Lucene and Solr (by Marc Krellenstein)
(Published: January 2009 - article)Scaling Lucene and Solr (by Mark Miller)
(Published: January 2009 - article)Solr Auto-Suggest using TermsComponent and JQuery (by Matt Weber)
(Published: May 2009 - article)Location-aware search with Apache Lucene and Solr - Combine unstructured text and spatial data to enhance your search applications (by Grant Ingersoll)
(Published: Jan 12, 2010 - article)Tips on Loading and Real-Time Searching of Big Data Sets (by Rod Cope)
(Published: May 17, 2011 - article)
Blogs
Grant's Grunts: Lucene edition - Grant Ingersoll's thoughts on the Lucene ecosystem.
Lucid Imagination's Blog - Many of the Solr and Lucene committers blog here about how to use Solr and Lucene
Sematext Blog - Search and Analytics covering Lucene, Solr, Nutch, Hadoop, HBase, and more
Cominvent Blog - Articles in Norwegian and English about Enterprise search with Lucene/Solr/FAST
Solr.pl Blog - Articles in Polish and English about Solr
IRC
#solr on irc.freenode.net - the Solr community water cooler (web access)
Mailing List Archives
Several third parties provide excellent interfaces for searching/browsing the Solr mailing list archives. Please consider the tips on UsingMailingLists before posting.
http://www.lucidimagination.com/search - Search the Lucene/Solr ecosystem. Powered by Solr.
http://search-lucene.com/ - Search the whole Lucene/Solr ecosystem.
Media (podcasts, etc)
Interview with Lucene creator Doug Cutting Podcast. Summary: Doug talks about the creation of Lucene, Nutch and Hadoop. (Published January 2009)
Interview with Lucene/Solr committer Chris Hostetter Podcast. Summary: Chris talks about Solr, Lucene and their usage at CNET. (Published January 2009)
Interview with Lucene/Solr committer Ryan McKinley Podcast. Summary: Ryan discusses Solr, Lucene and geospatial searching with Lucene (LocalLucene/LocalSolr) and his usage of Lucene/Solr throughout his career. (Published January 2009)
Erik Hatcher discusses Solr on an episode of WebDevRadio here http://www.webdevradio.com/index.php?id=47 (2007-04-10)
More links
del.icio.us users, please use the "solr" tag so that links can be found at http://del.icio.us/tag/solr
Presentations
Subversion and Solr (and Cocoon), your next content repository? Bertrand Delacretaz's presentation at the Cocoon GetTogether 2006
Slides from Hoss's Faceted Searching presentation at ApacheCon US 2006
Solr on Rails by Erik Hatcher at RailsConf 2007
Beyond full-text searches with Lucene and Solr by Bertrand Delacrétaz at ApacheCon EU 2007
Painless Full Text Search with SOLR by Michael Kimsal at OSCON US 2007
Apache Solr: Out Of The Box by Hoss at ApacheCon US 2008
Introduction to Solr by Tom Hill at eBig Java SIG, June 2008
Apache Solr: Beyond The Box by Hoss at ApacheCon US 2008
Get the most out of Solr search with PHP by Paul Borgermans at PHPBenelux conference 2010
Key topics when migrating from FAST to Solr by Jan Høydahl at Cominvent AS Lucene EuroCon 2010
Integration of Apache SOLR with Crawlers by Andrzej Bialecki at Lucene Revolution 2010
Hadoop + Solr for big data analytics by Ken Krugler at the 2012 Hadoop Summit in Santa Clara.
Tip & Tricks
Posting XML (to Solr) from ant by Peter Binkley (2007-02-01)
Online indexing - integrating Nutch with Solr by Sami Siren (2007-02-04)
Training
LucidWork's training - Training on Solr created by Solr committers and contributors (Erik Hatcher, Grant Ingersoll and the rest of the team at Lucid Imagination).
Solr Boot Camp - Training on Solr by Solr/Lucene committers and contributors. Offered exclusively at ApacheCon.
SolrTraining.com - Full range of instructor-led public as well as on-site Solr training by Cominvent AS and Jan Høydahl
DevelopIntelligence - Customized on-siteApache training, with courses on Solr, ActiveMQ, and more.