One of my friend owns a nice and popular social network site for the Spanish audience, which apparently gets him petty money. Most of the popular CPM networks like FM, BurstMedia etc have not responded, probably because the site is Spanish.
Anybody who has a Spanish website or know some nice Spanish CPM networks? I came across a few like tradedoubler, impresionesweb and clickdiario..But how good or reliable are they?
Thanks