I have authored another eBook on Amazon kindle for Apache Solr.
Here's the description:
Apache Solr is an enterprise grade fast search engine with full text search capabilities. It can be integrated with database, provides faceted query interface and clustering support. In this tutorial, we will build a fictitious search application to retrieve medical patient records. The Solr itself is a very big topic and not all the Solr features are covered in this book.
The book covers SolrJ library, Java code to interface to Solr, Solr configuration and installation on Tomcat and building Java code to perform search operations using Solr.
This book is aimed at developers, architects and technical managers who will benefit immensely by reading this book. This is a short and quick guide and provides practical example to build a search interface.
Here's the link to EBook - http://www.amazon.com/Practical-Building-Search-Applications-ebook/dp/B0060U2QCY/ref=sr_1_5?s=books&ie=UTF8&qid=1319967851&sr=1-5