) is a collection of links to subject related gateways (collections of links related to a particular subject--so this site is a collection of collections). This site is hosted by Heriot-Watt University in Edinburgh, Scotland, so the emphasis is on UK and European resources, but most of the gateways are international in scope. The list is alphabetical by title of the resource, not by subject; be sure to browse the whole list, since there may be more than one resource for a particular subject, such as Education.
Their About page gives the history of the name:
In ancient times, the Library of Alexandria was seen as a universal store of human knowledge. As the Library grew in size, however, it became increasingly difficult to locate relevant material. The poet Callimachus solved the problem by compiling a catalogue called The Pinakes. On a far smaller scale, these Web pages hope to provide a similar function for Internet resources, by linking to the major subject gateways.