Library Genesis
Library Genesis is a Russian project to create an online library of ebooks. They currently have about 2 million of them, totaling 26 TBs. The project is in blatant violation of copyright, and some users (UK) may have to access it using their IP, 93.174.95.27 (equivalent to libgen.io)
Database dumps
Database dumps can be downloaded from: http://gen.lib.rus.ec/dbdumps/ - automatically generated http://libgen.io/dbdumps/ - manually generated
The repository (the actual .pdf/.epub files) can be downloaded from: http://libgen.io/libgen/repository_torrent/ - torrent http://libgen.io/libgen/repository_nzb/ - usenet
Sci-Mag
Sci-Mag uses Library Genesis as back-end storage. The repository torrents can be downloaded from: http://libgen.io/scimag/repository_torrent_notforall/ The sci-mag database repository torrents are currently unavailable. The database is available together with the others under /dbdumps/.