“…Paid advertising on Facebook reaches much of the local population (Frandsen, Walters, & Ferguson, 2014), accesses hard-to-reach populations (Rait, Prochaska, & Rubinstein, 2015), allows targeting by demographics or keywords (Carlini, Safioti, Rue, & Miles, 2015; Ramo & Prochaska, 2012; Ramo, Rodriguez, Chavez, Sommer, & Prochaska, 2014), and can be less expensive than traditional advertising and other types of internet recruitment (Carlini et al, 2015; Ramo et al, 2014; but see Rait et al, 2015). Accordingly, paid Facebook advertising might be ideal to recruit smoking couples from a local population.…”