Catalogues | Brickset: LEGO set guide and database
Lego Element Wall - Parts Index / Catalog & Categories v2.0 by Artifex Creation: A LEGO® creation by Artifex Creation … | Lego sorting, Lego storage, Lego creations
The not-so-innocent LEGO brick - ECR Community
BrickLink - Set 5142-1 : LEGO Bricks, White [Service Packs] - BrickLink Reference Catalog
BrickLink - Part 3004p90 : LEGO Brick 1 x 2 with Classic Space Logo Pattern [Brick, Decorated] - BrickLink Reference Catalog