Newsgroups and Mailing Lists:
comp.databases.oracle 
comp.databases.oracle.server 
comp.databases.oracle.tools 
comp.databases.oracle.misc 
comp.databases.oracle.marketplace 
Oracle Mailing Lists 

Oracle User Groups:
IOUG,- International Oracle Applications  
ODTUG, Oracle Development Tools  
COUG,  Chicago  
DOUG - Dallas  
HKOUG -  Hong Kong  
MAOUG -  Mid Atlantic
NCOUG -  North Carolina  
NWOUG -  NorthWest  
OUGF - Finland  
PPOUG - Pikes Peak  
RMOUG - Rocky Mountains
SCOUG - South Central
SEOUG - Southeast  
SFOUG - South Florida  
TOUG - Toronto