Together with Packt Publishing we have give away copies of our latest book – “Elasticsearch Server 2nd Edition“. Although it is not about Solr, you can have a chance to learn about it and compare to Solr. For the readers of solr.pl we will modify the competition question – “What unusual use case you’ve implemented using Apache Solr”. You can also give an example of a functionality that can’t be achieved with Elasticsearch.
All the information about the competition can be found at http://elasticsearchserverbook.com/win-elasticsearch-server-second-editon-ebook/.