MicroContent News has a nice followup to the question it posted yesterday about what Conversant is. But John Hiler concludes that the system is just too expensive at $500 for the production server version.
But if you just want to run a web site or web log, you definitely do not need to shell out $500 for the production server version. Instead check out the hosted options.
You can sign up there for a free site, which is really what you want to do to see if the system will work for you. And that free site will probably be more than enough for what most webloggers are doing.
But if you need multiple web sites e-mail forwarding, a static FTP area, etc., Macrobyte offers non-domain hosting for $25/month and domain hosting for $35/month. Or go hog wild like I did and go for a dedicated server (but I have more than a dozen separate sites and subsites and a lot of other stuff that most people are not going to need).