Postgresql

Документация/форумы:
http://www.postgresql.org/docs/9.0/static/index.html
http://www.sql.ru/forum/actualtopics.aspx?bid=7
http://postgresqlrussia.org/pgsqldocrus/doc/src/sgml/index.html

Полнотекстовый поиск:

http://www.postgresql.org/docs/8.3/static/textsearch-tables.html

http://www.sai.msu.su/~megera/postgres/talks/fts_pgsql_intro.html#ftscfg
http://www.sai.msu.su/~megera/wiki/Tsearch2
http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/
http://www.sai.msu.su/~megera/postgres/fts/doc/fts-headline.html

http://developer.postgresql.org/pgdocs/postgres/textsearch-controls.html
http://www.postgresonline.com/journal/index.php?/archives/34-TSearch-Primer.html
http://www.postgresonline.com/special_feature.php?sf_name=postgresql83tsearch_cheatsheet&outputformat=html

Postgresql-9 + Ubuntu-10:
https://launchpad.net/~pitti/+archive/postgresql

Инструменты:
http://apgdiff.startnet.biz/ - Another PostgreSQL Diff Tool (apgdiff)

Highload:
http://samokhvalov.com/files/Lecture9.pdf