Access is available to current issues on each journal website, plus all previous issues and back material as available. Free back issues. Many titles offered though HighWire Press offer free back issues older than a set time period to the entire web community. Publishers are able to offer this unique service because their business model is to 'recover costs' not to 'make as much money as the market can bear'.
Specific policies vary by publisher.
Standard archiving policies of data stored on magnetic tape. The HighWire Press servers are located at Stanford University. All information that is online will continue to be kept online at Stanford. The data served from Highwire Press is archived and stored according to rigorous industry standards. Press release regarding HighWire Press' archiving plans.