DDJ, especially the run 1984 to 2000-ish, is how I learned C and assembly, and much of my attitude towards software.
These days I read PragPub ed. by Michael Swaine of DDJ infamy, though it's more architect/software manager-oriented than in-the-trenches bit-eating, but it still has some real working code.
Also, I really miss Jolt Cola, like a detoxing junkie misses a needle.