A plurality of mashups created by a plurality of mashup authors indicated as being in a community relevant to a mashup based, at least in part, on social network data are identified in response to indication of a mashup building operation. Frequencies of a plurality of mashup configurations used by the plurality of mashup authors in the plurality of mashups are determined according to data about the plurality of mashups. A set of one or more recommendations that are associated with a set of one or more of the plurality of mashup configurations is generated for the mashup.