I remember coming across a very minimalistic PHP CMS that targets mainly artists as an easy way to put their portfolio online. It was open source and had an own site. There was a ZIP download, no hosted service as far as I remember.
It was used by a number of artists, including well-known ones. The project site and many implemented sites had vertical menu navigation (i.e. items underneath each other). Now I would like to send the link to a colleague who is planning to re-build his site, but I just can't remember the name anymore. Does any name come to your mind?