The 2015 Hugo Voter Packet is available for download by members of Sasquan. The packet “is free to all current Supporting, Attending and Young Adult members of Sasquan, and those who become members before 31 July 2015. Its purpose is to allow those who are voting on the Hugo Awards to be able to make an informed choice among the nominated works.”
The packet does not contain all the nominated works in their entirety, but there is some free material in every category except Best Dramatic Presentation.
For more information, see the Sasquan website.