I'm very ignorant about HTML code and such.
But I did explore the possibility of using myrootsmagic.com for publishing family sites. Unfortunately I was almost immediately put off by the outdated design and the very limited features (when compared to other online options out there). At least that's what the sample website indicates: http://my.rootsmagic...mple/index.html.
It has a Pedigree Chart and individual or family groups presentation, but no "all-in-one" interactive chart options as most online websites now have. As TomH referred, a good Descendant book, Google friendly, would be an important option. And other features such a world map with pin points and links on it, a nice interactive photo gallery, maybe even a chat area for reserved members, interaction with facebook and such, a more "blog-able" area, a page dedicated to sources, etc.
But a more updated and beautiful design, for me, would be crucial. Good presentation, clarity, accessibility are, for me, the key features in a family website. Genealogists and family research fanatics generally aren't good designers or visual artists! Old-fashioned family websites look terrible and put younger family members off, as well as other members of the public. If the objective is to create something for the family and to present it to the world outside, it needs to be appealing, not boring! Unless we aim to communicate only unto ourselves and our pears, of course...