Web design involves technical skills that a presentation or print designer does not have. At the same time, (if I may say so), presentation/print designers might have a better feeling for page layout (understatement). Yeah, yeah, I agree, on the interactive technology front the geeks still beat us.
I have blogged many times over the past few years about the similarities between web and presentation design.
Most automated web design tools are aimed at small business owners with zero design or software skills: Wix is an example, or look at Striking.ly. So I was pleasantly surprised to discover Webydo that offers a design environment similar to PowerPoint or InDesign and enables presentation/print designers to create some pretty decent web sites.
The company is still in beta, so there is always the risk that your web site might go down with it in case the company does not get traction (that is why I am giving it some publicity here). Also, the software still has some tiny bugs that I am sure will be ironed out in the near future.