The deadline to register to vote in the November 6 election is October 16. One can register online as https://secure.sos.state.or.us/orestar/vr/register.do?lang=eng , and find more information about voting at http://www.sos.state.or.us/elections/voterresources.html .
An individual must register any time his/her address changes. One may also choose to register in order to update information including party affiliation.
Special note for those working with students: Oregon allows registration at 17 years old in order to ensure that those turning 18 by an upcoming election are able to vote in that election.
For those new to voting in Oregon: All voting in Oregon is done through vote-by-mail. Ballots are mailed to registered voters, and voters can return ballots back either through mail or at designated ballot boxes. Ballots will be mailed to voters starting on October 19 (other than those mailed to absent electors).