Listen Alaska is the audio books program which UAF is a member with many other institutions in the State. The program can be accessed from the E-Books page section of the Rasmuson Library web page or this link. Listen Alaska requires you to download and install the overdrive software, then to register that software. Once that is done you are free to “check out download and enjoy” the audio books available.
Project Gutenberg is an online book collection, most of which are beyond copyright restrictions. Download is free and the zip download is fast in my experiences. You can search or browse by author or title.