Although our RPM packages automatically adds our software repository to your package manager on supported distributions, you can also add it manually. The URI is:
http://apt.spideroak.com/spideroak_one_rpm/stable
This isn't a web page so attempting to view it in a web browser will fail, but it will work when provided to your package manager. How to add it to your package manager is distribution-specific, but as an example here is how it is done in OpenSUSE.