Meet Mr. Pencil (mechanical, that is)

The blog name Dave's Mechanical Pencils says it all. This engineer (when you see the quality of his product reviews, it will be obvious that he's being honest about his profession) from New Zealand should be your first stop if you're looking to learn about mechanicals.

The only downside to his site? He doesn't (yet?) have a review of my beloved Zebra M-301 0.5mm :)