Woodnet is hosted by August Home. Many knowledgeable, helpful members ready to answer your questions or offer advice. I've learned about techniques, tools and just about everything else on this forum.
Wood Magazine's forums is another highly recommended forum.
Knots forum is hosted by Taunton.
I buy most of my hardwood from M.L. Condon Company in White Plains, NY.
I buy most of my cherry from Lakeshore Hardwoods in Pulaski, NY, near Watertown, telephone (315) 298-6407. The have the best cherry I've seen anywhere. I have no problem buying from them sight unseen. Brian, who owns Lakeshore, is very helpful and knowledgeable.
Another supplier of hardwoods and really good quality furniture grade plywood is Rosenzweig Lumber Company in the Bronx. NYC, telephone (718) 585-8050. They have an incredible selection and stock.
Here's a flow chart that makes it simple to date your vintage Stanley plane.