Busi­ness devel­op­ment man­agers keen to boost their agency’s online adver­tis­ing sales suc­cess­es might look to Chica­go for advice on the best data to use. For­get stale data from focus groups or TV rat­ings sur­veys from Nielson.Co. Net­worked Insights, a young ad tech com­pa­ny based in the city’s West Loop, uses “data in the now” to help agen­cies and adver­tis­ers make fast deci­sions about the direc­tion of a campaign.