1. A method, comprising: obtaining at least one search criterion in a first network node in a communication system; determining at least one entity entry from an entity contact information list, wherein said entity comprises at least one of a natural person or a legal person; determining an identity of a second network node in the communication system from said entity entry; determining an address for said second network node using said identity; causing said at least one search criterion to be submitted to said second network node; receiving at least a content object identifier from at least one result metadata object at said first network node, said at least one result metadata object being obtained in said second network node by matching said at least one search criterion to at least one metadata object; determining at least one direct reference associated with a metadata object, said direct reference identifying a third network node; causing said at least one search criterion to be submitted to said third network node; receiving, at said first network node, at least a content object identifier from at least one result metadata object in said third network node, said at least one result metadata object being obtained in said third network node by matching said at least one search criterion to at least one metadata object in said third network node; and obtaining or accessing a content object using a received content object identifier to said first network node.