Via -- where else? -- Metafilter - the Collier Classification System for Very Small Objects. Lovely, lovely concept, though I do wish the resulting names were just a tad more pronounceable.
Also, does it remind anybody else of the sort of thing Ben Schott might do?
I have a phobia of solitary small things, 5ps, paperclips, earrings in particular, yet I am not afraid of anything at the microscopic level, why is this? Am I ill? I can also only eat baked beans when they are in toast, not independently, is this related?