The B2B site I'm working on will have several crowdsourced modules such as popular articles, most saved documents, and recent popular searches. These can be filtered by role or region, in order to show "most popular for people like me."
I'm wondering if anyone has found or documented standards on how popular links are calculated, for example whether they are total number of clicks or unique visitors. This isn't a public site, so we're less concerned with advertiser conventions than what will product meaningful results for user.