I’m not completely sure. Sometimes I find stuff in one site I don’t find in any of the other two. Also, I don’t know how often catalogues are synced.

Yes. I combine libgen with Anna’s Archive and Z-Library and there’s very, very little I can’t find.

Combine that with KOReader and this is pure bliss.

Some people have already commented how to find it.

However, on a tangential note: last I heard, they stopped adding new papers due to a trial in India, but I never found out the outcome of that. Anyone has news about this, or did I dream it?

I created my account in Spain around 2009, moved to Canada in 2014 and came back to Spain late last year. Never had a problem with this :-?