Good article but I disagree with some of the plants they list as good for closed terrariums. A few on the list grow so tall and so fast, you would be constantly pruning or they would take over the terrarium quickly! Many of the plants they list would do well in open dish gardens but not in enclosed terrariums. The very first plant they show is African Violet ... which would grow well in the humid environment of a terrarium but would not bloom unless it had very bright light. For blooms, AV's do best in a bright window, shaded from direct sun or on a plant stand under grow lights. Some Kalanchoe get very tall and Arrowhead Vine will vine around and take over the entire terrarium in no time. They also list Aglaonema as 3-6" - I would love to find one that remains that small. All the Chinese Evergreens I've ever seen get at least 12" and taller. Croton's are landscape plants and grow to be 4 feet or taller so I wouldn't want to place one in a closed terrarium. And, Neanthe Bella Palm's can get a few feet tall also so would be better for an open container.
It's a great list of plants - just realize that some of them on that list will get pretty large so you would have to be taking them out of a terrarium or dish garden as they outgrow the space or some you will have to constantly pinch back or prune to keep them at a size to fit the container.
Here's an example ... I planted this Fittonia ("Mosaic", "Nerve" plant) in this jar terrarium a couple of years ago and I keep having to pinch it back because it gets so squashed in there.
Also you can use "air plants" They do not use dirt and only need to be "watered" once in awhile, which for me is to hold them under the faucet for a minute. You can glue them to something and they do not mind. Sorry I do not know the latin name of them but they would work well for a terrarium also (they are very slow growers) and you need not to plant them or water them in a terranium.
Some Tillandsia get really huge and there are some that are miniature in size. I've never thought about them for Terrariums but since they love humidity the mini's would probably do very well in that environment. They do have pretty blooms.
This is a Florida native called "Giant Airplant", Tillandsia utriculata growing in a tree in my neighbor's backyard:
I love giant plants! That florida air plant is awsome! If I had a nice big green house we would call it a terranium and put this plant right there along with the gigantic elephant ears of some kind. Then I would put in a bed and a microwave and move right on in.