I use Palomino Blackwing 602 pencils every day. The graphite is perfect for me - dark, but not greasy. And it lives up to its motto: "Half the Pressure, Twice the Speed," which is printed on each pencil. I'm delighted that Pencils.com is sponsoring Boing Boing this week and offering a special eraser deal for our readers. Thanks for sponsoring Boing Boing!
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects