Lance Wilson from Cabela's discusses how remarketing lists helped increase their click-through rates on Google Display Network ads. He showed how creating separate remarketing lists for people who visited pages about fishing, hunting, camping, etc. and targeting them with relevant ads increased CTRs, with fishing ads achieving an 88% increase. Remarketing lists can be built based on user behavior like page visits, beginning checkout, or abandoning a cart. Similar audiences then finds new potential customers to similar to existing remarketing list members to expand reach.