Spartan Kettlebells uses Apsis Pro to manage their newsletters. In a nutshell, the solution works like this: you can drag and drop different “modules” in the order you want, and voila, you have a fancy newsletter. Provided that the modules are nicely designed. They weren’t.
We remedied that, and designed a nice new newsletter for them. If you’re keen, you can always subscribe to it here: http://www.kettlebells.nu/