I have a whitelist for the sites i need (apparently I need Yeshiva world..) it actually blocks even the ads on the sidebar of Yeshiva world’s homepage!
however i have a very limited number of sites i need and i don’t constantly need new ones. if you constantly need access to different sites, a whitelist can get inconvinient.
in any case, let’s not minimize the problem, and i applaude chofetzchaim for writing an important post.