I never whitelist sites. There is the security aspect, but mostly it's because ads are bloody annoying.
Websites that need the income can raise a paywall - if they are worth the money to me I'll pay.
One or two sites I used to visit regularly now block on sensing an adblocker, but pretty much every site has the same information, albeit maybe rehashed by a different hack, duplicated on many others. El Reg is my favourite IT news site and has been since it started, but there are many others covering the same ground to migrate to were ads ever to become mandatory.