I am buying traffic from a broker not one source and sending to various landing pages. I would like to know the best way to structure a campaign so I can find which referrering site/url is performing the best (time on site, bounce etc) Should the utm_campaign be the 'brokername' and the utm_source be the 'landingpagename' or should this be the other way around? Also what would be the best way to create a custom report to show all the referrers metrics by each landing page ? Thank guys really appreciate any help on this.