There is also a torrent ( http://thepiratebay.sx/torrent/7978965/ ) which has the ones at archive.org and more, with some replaced with higher quality scans. And ftp://helpedia.com/pub/archive/temp/Byte/ has some that aren't in either the torrent or archive.org yet.

http://atariage.com/forums/topic/167235-byte-magazine/ is where people doing the scanning are/were hanging out. Scanning seems to have kinda stalled recently. :(