7. Non-transitory computer readable media comprising program code that when executed by a programmable processor causes execution of a method for supplementing a web graph of linked web documents, the computer readable media comprising: program code for identifying one or more experts for one of one or more categories; program code for identifying one or more documents tagged by the one or more experts for a given category; program code for determining a corresponding category of the one or more web documents tagged by the one or more experts for the given category; program code for assigning a proxy web document to each one of the one or more experts identified for the given category, the proxy web document representative of a corresponding one of the one or more experts; and program code for linking one or more proxy web documents to the one or more web documents tagged by the one or more experts for the given category.
8. The computer readable media of claim 7 wherein program code for identifying one or more documents tagged by the one or more experts for the given category further comprises program code for identifying one or more documents tagged by the one or more experts for the given category located within an existing web graph of web documents.