Among the major online catalogs with substantial holdings in anthropology are:
The European Library - This link provides access to the homepages of 46 European national librariess, with coverage reaching from Russia and the Ukraine to Ireland and Iceland. Users not fluent in the national language of a particular site should look for a small icon of the British or United States flag- this indicates that an English-language version of the page is available. Beginning users in anthropology will find the British Library a good starting palce.
