I've been addicted to the kernel page since I first found out about it 10+ years ago. When they put up the pay wall it looks than a month before I cave and subscribed so I wouldn't have to wait.

I read the kernel page and front page religiously, and read bits of the others.

I can't imagine how many things I've learned following the kernel's development. But the mailing lists are HUGE and thus hard to follow. LWN makes keeping up possible.