Reddit does well at unobtrusive ads. Their sidebar ads are easily blocked by adblock, and occasionally they’ll just run an ad with a happy reddit alien saying “thank you for not using adblock!”—a lot of reddit users have their adblock settings set specifically to allow ads from reddit, in order to support the site.
ETA: I suspect the ad would be closed less often if there were a note nearby naming the specific charity to which that ad was providing revenue.
Reddit does well at unobtrusive ads. Their sidebar ads are easily blocked by adblock, and occasionally they’ll just run an ad with a happy reddit alien saying “thank you for not using adblock!”—a lot of reddit users have their adblock settings set specifically to allow ads from reddit, in order to support the site.
ETA: I suspect the ad would be closed less often if there were a note nearby naming the specific charity to which that ad was providing revenue.