I use superglue for anubias and Java ferns, but I use cotton thread for mosses; the glue's too messy for moss, I find.
Oh; if you use thread, make sure you pull it tight so any fish (catfish and loaches are most likely) can't get stuck between the thread and the wood or whatever; I've had to cut a few free at odd times; it's not fun, for you or the fish!