I suggest cruciverb.com for construction resources, and crosswordfiend.com for hanging out with the solving/constructing community. The Fiend is run by Amy Reynaldo, who was originally quoted in the article, and is a top solver/test-solver/critic/great person. -Ben
I should add that there are lots of us, men and women, who will help mentor you if you're interested in construction. Hit me up on that Twitters @datageneral or by email (ben [a.t] inkwellxwords dot com) and I'll either help you out or find someone to help you out. -Ben
@nina! Yes, major props to Emily Jo for the illustrations. Thank you.