trenchtwist
Felt slightly impressed without being able to point to one specific reason, and a look at trenchtwist continued that diffuse positive feeling, when content works at a level you cannot easily articulate the writer is doing something with craft rather than just delivering information and that is something I have learned to recognise.
gyrarena
Really like that the writer trusts the reader to follow simple logic without restating every previous point, and a stop at gyrarena kept that respect going, treating an audience as capable adults rather than as people who need constant hand holding makes a noticeable difference in the reading experience for me.