I tried installing FBReader on Ubuntu, but I couldn't get it to work. First I installed the libenca0
from here (freshly compiled), and then I tried to run FBReader from
this package. Unfortunately, FBReader still complains that it cannot find the enca libraries:
./FBReader: error while loading shared libraries: libenca.so.0: cannot open shared object file: No such file or directory
The problem with FBReader is that it isn't so much widespread (its format). Even if you put FBReader on the $100 computer, most online e-texts would be unavailable because they are usually offered in PDF format.