done...doar ca daca pui mai multe ad unituri..n-o sa scada valoare clicului???
However you choose to implement your ads, keep in mind that forums are highly interactive sites with regular users. Be sure to blend the ads nicely, so they don't appear overly intrusive - but don't blend them so well they mislead your users! Every forum site is different and you know your community best, so as always use your own judgment to create the most positive experience for your users.
asta am gasit pe site la google...