Does anyone know what happened to the AppExchange plugin by SF (possibly a Labs item) that existed to store Referrer and other such values? I see no sign of it. Is SF perhaps leaving it to Orgs to create and populate these fields themselves? I feel I missed something in the past 12-18 months involving this.
As a side note: We're looking at using Invoka for phone-call linking and supposedly they support such data as well.