18. The computer system of claim 17 , wherein initiating the addition comprises automatically adding a field of the first field type to the first page.
17. A computer system comprising: a computer processor; and a computer program executable by the computer processor, comprising: instructions for providing a graphical user interface by a social networking system to a page administrator, the graphical user interface comprising controls for administering a page in the social networking system; instructions for identifying a plurality of field objects added using the graphical user interface by page administrators to pages hosted by the social networking system and administered by the administrators; instructions for identifying field types of the plurality of field objects added to the pages, wherein at least one of the field types is the field type for a plurality of the field objects, and wherein the at least one of the field types is added to some but not all of the pages; instructions for identifying page types of the pages to which the field objects were added, wherein at least one of the page types is the page type for a plurality of the pages; instructions for determining, based on the identified field types and on the identified page types, a degree of association of a first field type with a first page type; determining that the degree of association of the first field type with the first page type is greater than a threshold degree of association, some pages of the first page type lacking fields of the first field type; instructions for determining, for a first page of the social network, that the first page lacks a field of the first field type; and instructions for, responsive to determining that the degree of association of the first field type with the first page type is greater than the threshold degree of association, and that the first page lacks a field of the first type, initiating an addition of a field of the first field type to the first page without a request therefor from a first administrator of the first page.