<!doctype html public «-//w3c//dtd html 4.0 transitional//en»> http-equiv=content-type> The book surveys major culture portals in the fields of culture and science, such as the German Digital Library. It presents a range of different projects with a focus on historical, disciplinary, organizational, legal, and economic aspects. The descriptions of the portals are uniformly organized to enable a comparative assessment of the offerings, thereby providing an overview of the current landscape of online culture portals.