We are still actively working on the spam issue.
Pacman is the package manager for Arch. This uses the repos specified in /etc/pacman.conf.
Yaourt manages packages from the Arch User Repository. Beware, this software is not maintained by the distro maintainers.
The Arch Wiki is a required component for installing and configuring Arch.
ArchBang is an arch derivative that runs the Openbox window manager.