@Steliyan_Petkov_Georgiev, I'd rather pay for useful, well put together content than being constantly nagged by useless advertising. And let's not forget the system resource overhead, generated by the oh-so-cool flash banners. Even if FF is slower, not playing all the adnoyance for sure makes things better. Last but not least 99% of advertisements are not suited to the content and visual style of a particular site, thus creating interrupts and aesthetic dissonance, further reducing readability and overall experience.