Craig'sList can be useful and I've used it for years, but Craig Newmark is a raging communist who actively promotes left-wing political agendas. His site even has special lists of "progressive" resources online that he recommends, and is a regular meeting place for anarchists, communists, and socialists.
He also permits the selling of drugs on his site, and encourages prostitution to the point that CraigsList has special sections DEVOTED to allowing hookers and johns to find each other. I won't even get into the content of the gay sex discussion boards.
It's useful, but I'd think twice before claiming to "love" it.
I have two Internet heroes - Newmark and Buckhead.