a very good list for amateur repeaters in Or is here:
http://www.artscipub.com/repeaters/states/oregon.asp
some nets to get you started:
the National Traffic and Training Net meets daily at 18:05 local time
on the WORC system in the Portland area:
http://www.worc.info/worc_system.htm
Western Oregon VHF Emergency Net (WOVEN)
The WOVEN Net operates daily at 19:30 local on the 146.78 W7QH repeater
(Mary's Peak) , with an alternate of the 146.82 repeater.
This net is intended as a traffic and training net.
(Mid Valley - Salem to Eugene)
Michael KC7UPW
Corbett, OR