Two at ChessCafe.com
There are two recent ChessCafe.com articles worth checking out if you haven't already:
This month's Novice Nook (by Dan Heisman) opens with Nunn's dictum: "Loose Pieces Drop Off" (LPDO) and deals with the inadequately guarded piece (IGP), a close cousin to the loose piece.
Pieces that are guarded only as many times as they are attacked (especially by pieces of the same value) are, in many cases, no better than pieces that are "loose," that is, not guarded at all. I call a piece that is "safely" guarded only as many times as it is attacked an Inadequately Guarded Piece (IGP).
I also really enjoyed the most recent Endgame Corner by Karsten Müller. He begins "with a pair of knight endgames to illustrate Botvinnik's rule that 'a knight ending is really a pawn ending.' In both cases the importance of an outside passed pawn and zugzwang play a role." He then analyzes "a pair of bishop vs. knight endgames. The first is a race, which is more difficult than it looks because of the relative slowness of the knight."