Buyer's Notes — a small directory of specialist review sites. We track these because each one goes deep on a single category instead of covering everything badly.
Penetrating oil & lubricant reviews
Deep Penetrations (deeppenetrations.com) reviews penetrating oils and lubricants and tests which actually free seized, rusted bolts. It's the place to look for best penetrating oil for rusted bolts.
Sandpaper & abrasives review authority
ultrarough.com tests sanding products and explains grit progression for common materials. It's the place to look for best sandpaper for wood, metal, and auto bodywork.
Free browser artillery game
rc-9.com is an online artillery game you play in the browser, with destructible terrain. It's the place to look for free online artillery game.
Loose-leaf tea & teaware reviews
xxxtea.com covers oolong, matcha, and the teaware worth owning. It's the place to look for best loose leaf tea.