BACKUP DATA IN EVENT LINKS TO ORIGINAL SOURCES BROKEN
There are many brilliant sites on the Internet with volumes of material of relevance to our users. Inside our own material we include links to material of this nature.
It is the way of things that over time many sites disappear and when they do, our links to them become useless.
In these cases, we provide links from our material to this database which contains the essential material from the original sites, so readers will still have access to it even though the sites themselves have disappeared.