The standard repository for all knowledge and wisdom kept on this site — notes, references, and half-formed thoughts that don't belong anywhere else. Where it is incomplete or wildly inaccurate, it is at least written down. Entries are added whenever something turns out to be worth knowing.
The single most useful thing ever printed on the cover of anything. It applies equally to broken builds, dropped databases, and pages that refuse to be found. Breathe. It is, more often than not, mostly harmless.
A towel is about the most massively useful thing an interstellar hitchhiker can carry.
A blog is a bit like a towel: something to wrap around ideas so they don't drift off into the cold vacuum of the timeline.
The Answer to the Ultimate Question of Life, the Universe, and Everything. The trouble was that nobody knew what the Question actually was. Consider this whole site an ongoing, cheerfully unfinished attempt to work it out.
The entire Guide entry for Earth, after fifteen years of painstaking research. A high bar for concision. Everything here aspires to be at least that useful.