Thanks for the resources, I didn't know about the Master Gardener certification.
I'm aware of the extension services, and have been reading articles and recommendations for extensions in similar areas as mine. I am using my extension service as my "grass/weed TF100," so I'm confident in my test results, I just wondered if there was a forum where a bunch of knowledgable people got together to discuss these things, like TFP. There is no shortage of forums, I guess I was looking for a screening process, and thought that people at TFP are likely to be similar-minded so could recommend something! I find either chaotic forums where everyone chimes in with conflicting advice and there are no resolutions, or lawn care professional-centric ones that have a disincentive to help out the average homeowner.