There's a reason they weren't mentioned, they're terrible.
They're too big and too complicated. CMS's were developed by programmers who have no idea how the real world works. Most have probably never seen the outside before, since they generally spend their entire lives in a dark basement eating Poptarts and sanding their calloused finger tips.
You'd be better off learning how to write a little code yourself and designing your own "type" of CMS. All you basically need is a script to Add, Edit and Delete information to-in-from a database. Nearly all the websites I design allows the client to easily manage all the information on their website from an admin area. And when I say "easily" I'm not talking from a programmers point of view, but from your great grandma's.
In addition to business websites I also make a lot of personal websites for individuals. These often include a photo gallery, a mini-CMS, and often times a message board - all of which I designed and developed myself. The beauty of being able to do this yourself is that you get EXACTLY what you want and not what some jughead wants you to have.
Things get very very ugly when a programmer tries to design. I think we can all agree on that. If you're a young designer you would probably pick up on php very quickly. Php isn't very intuitive nor does it make much sense - making it a perfect fit for young people.
When developing a website, and especially if it will have some level of functionality to it, you should create it from the standpoint that the person you making it for has zero computer intelligence outside of knowing how to turn a computer on. This separates the developers from the mice.
Successful websites are logically laid out, easy to read, easy to navigate, easy to use. Can you find the keyword in that sentence? That's right - EASY. Not flashy, not spectacular, not mystifying, not stunning -- but easy.
The vast majority of websites exist for one purpose - to provide information. Should that be hard? Hard to add, hard to find, hard to read, hard to change or hard to get? No. Then why are so many websites just that - hard?
I'll tell you why... Designers and Developers GONE WILD! Gone MAD may be more like it. Websites and programs should be designed/developed for the least experienced user.
When a good author is writing a book he first determines the average grade level of his intended reader, then he writes on two to three grade levels below that, and in a way that doesn't compromise the integrity of the story. This gives him a large number of readers and makes him a lot of money.
It should be no different for websites. If you make it easy for your great grandma to use, then it'll be that much easier for an experienced user. I have never lost a job or had a stop payment on a check because I made a website too easy to use.
The CMS's out there now may be easy to an experienced designer or developer, but they will require a certain amount of LEARNING on the part of the person you making it for.
"Look, I don't want to have to go back to school to learn how to work this thing... I just want to get on it and GO!"
I design and develop websites that allow my clients to simply get on and go. Do you? Will you? Or will you throw together some prepackaged piece of junk, stick your name on it and tell your client that that's the best you can do?