[davidwritesbugs]

I used Britannica while in prison due to the obvious "No Internet". It works well enough: the articles are OK and from authoritative authors unlike many wikipedia pages but I found them a bit lacking in full detail; the main problem is that the range of topics is much much smaller, to the point where it was far less useful for detailed research. For prison, use as a basic reference, it was probably perfectly OK but for more demanding research it's not adequate.