FreeBSD's manpages are also quite excellent. I haven't had to refer to NetBSD's ...

		dredmorbius on Nov 27, 2014 \| parent \| context \| favorite \| on: OpenBSD kernel source file style guide FreeBSD's manpages are also quite excellent. I haven't had to refer to NetBSD's but I'd suspect it's also good. On the Linux side, Debian tends to support manpages better than others (they're required by Policy, though they're not release-critical).