Feel free to visit some of our trusted colleagues.

Independent Oracle Users Group - www.IOUG.org
Oracle Applications User Group - www.OAUG.org
Oracle Partner Network - www.OraclePartnerNetwork.Oracle.com
Avnet Incorporated - www.Avnet.com
Hotsos Enterprises - www.Hotsos.com
Ask Tom (the premier Oracle answer site hosted by Tom Kyte) - asktom.oracle.com
Tom Kytes's blog - tkyte.blogspot.com
Jonathan Lewis's blog (one of the best Oracle internals guys) - jonathanlewis.wordpress.com
Tanel Põder's blog (another great Oracle internals guy) - blog.tanelpoder.com
Cary Millsap's blog (author of Optimizing Oracle Performance) - carymillsap.blogspot.com