Cinnamon is available for download in a variety of ways.
Cinnamon is available from the Linux Mint repository. Simply install the package “cinnamon“.
Cinnamon is available from the Fedora repository. Simply install the package “cinnamon“.
Find some explanations and a 1-click install package http://en.opensuse.org/openSUSE:GNOME_Cinnamon
Cinnamon is included in the main portage tree: http://packages.gentoo.org/package/gnome-extra/cinnamon
You can find Cinnamon for Frugalware at: http://frugalware.org/packages/137162
Use the .zip archives available at https://github.com/linuxmint/Cinnamon/tags