The hugely popular book downloading (“indexing”) site Gigapedia is now rechristened as library.nu and is available on the new web address. In fact typing Gigapedia.com will automatically direct you to library dot nu. While the reasons for it are not made public, it may be because Gigapedia may have rubbed the publishers the wrong way for obvious reasons. The new domain name without a TLD ends in .nu (Nieu).
Some days ago, the notice on the site said that Gigapedia was still being moved to the new home and all previous records will be available soon. However, there were complaints that some people were unable to login at the new side. Also the new site was not as useful and comprehensive in housing books of all kinds as the classic Gigapedia. I have not used the new site since Gigapedia’s migration so I cannot comment on that as of now but the first feeling is that the site looks good (same as the old Gigapedia). In the past Gigapedia has been down on more than one occasions and some times even new registration was not allowed. All this is understandable given the risks a book downloading site like this one incurs especially when it is so popular.
You may read how to download books from Gigapedia or library.nu on this site. It may still be useful. More points will be added here when I use libray. nu.
You can see the comment section below where people having problems in accessing library dot nu are discussing things; it may be of help.