Isolation: a networking oxymoron.
Licensing rather than purchasing builds time and healthy diversity into your custom designs: Chesler's Bed & Breakfast and "The Practical Guide to Practically Everything".
Don't reinvent the wheel--build on what works and invent what's needed.
People matter. The net is made of people working. Effective reciprocal linking requires thought and F2F and not mass mailings: Clarinet, Der Spiegel, BookStacks.