Idaho residents are eligible for a special borrower's card to check out books and obtain a username/password to use a guest computer. Library accounts can be accessed using the 14-digit code on the back of your library card as the username, and your last name as the password.
Many databases can be used in the library by guests, with some exceptions.
If you want to use eBooks it depends on where the eBooks come from - many require your affiliation with Boise State, and some do not. Enquire at the Reference Desk for assistance.
The State of Idaho also subscribes to a number of article databases and reference materials that you can access from home via http://www.lili.org