Some cases are easy to find online, i.e. Supreme Court cases. It's actually relatively easy to find cases from other federal appellate courts (that is, cases that have been appealed from their original jurisdiction) and district courts. It's also relatively easy to find online State appellate cases. It's very difficult to find online non-appellate, trial court level state cases without access to very expensive, specialized databases that aren't available at the WSU Libraries.
Case Law
Case Law Reporters
***Legal Research: A Guide to Case Law (Law Library of Congress)
Note - look in the box below for case law available online (including free access)
Note - historical reporters may be included in the HathiTrust Digital Library.
Note: Federal reporters at the WSU Libraries are no longer current in print, although older editions are available in the stacks and in compact shelving.
Federal District and Other Courts (includes some Supreme Court stuff as well)
PACER
Washington State Judicial Opinions Website. Washington Courts. A free site with published opinions from the Washington Supreme Court and Courts of Appeals, dating back to territorial days. Opinions on this website are the officially edited opinions and are published 60-90 days after slip opinions are filed. Includes search option. Washington State Court Slip Opinions. Washington Courts. This website provides slip opinions from the Supreme Court and the Court of Appeals that were filed after February 22, 2013. Slip opinions are the opinions that are filed on the day that the appellate court issues its decision and are often not the court's final opinion. Includes search option.
Washington State Supreme Court and Courts of Appeals Opinions. Available via Nexis Uni. WSU Only Access.
About State Court Decisions (Law Library of Congress)
See also the Library of Congress' Guide to Law Online: US States and Territories
WSU Libraries Subscription Resources for State Case Law
State Supreme Court and Court of Appeals Opinions. Available via Nexis Uni. (WSU Only Access).
Nexis Uni provides access to all state Supreme Court and Court of Appeals opinions back to statehood or territorial days. Extensive search options.
Free Online Resources for State Case Law
Cases and Codes. State Resources. FindLaw.
Provides links to state Supreme Court and Court of Appeals opinions. Dates of coverage vary by state.