http://www.lucidimagination.com/Community/Hear-from-the-Experts/Articles/Scaling-Lucene-and-Solr#d0e245

http://www.derivante.com/2009/05/05/solr-performance-benchmarks-single-vs-multi-core-index-shards/

http://it.blog.onet.pl/Solr-wydajna-platforma-wyszuki,2,ID402174096,n

http://wiki.statsbiblioteket.dk/summa/Hardware