Silvio Rhatto has made a SlackBuild script for the Monkeysphere.
The current maintainer of the script is pyllyukko and the latest version of the SlackBuild script can be found on GitHub. This has been tested against Slackware 14.1.
Thanks, rhatto and pyllyukko!
To get started using the Monkeysphere for website validation, you will need to also install the Monkeysphere Validation Agent. Currently the perl version of the agent is only available directly from source repository. Once you have installed the monkeysphere package, you will need to also install the validation agent.