Several websites of Oracle learning ____oracle

Official documents of the Http://tahiti.oracle.comoracle
Http://metalink.oracle.com/oracle's technical Support website. Need to purchase Oracle services to have an account, to log in, there are a large number of knowledge Base, a large number of problem-solving experience.
Http://www.oracle.com Oracle's official website, where you can down Oracle's software, official documentation, and get the latest news
Http://www.dbazine.com/Oracle's Magazine.
Http://asktom.oracle.com
http://www.orafaq.net/
http://www.ixora.com.au/
Http://www.oracle-base.com
Http://www.dba-oracle.com/oracle_links.htm

Oracle Document Chinese site:

Http://www.oracle86.com/ora_doc/server.111/b28286/functions090.htm