Ditto on what others have said. I now shoot mostly Sony and have looked for online presence. None that I have found are anything like NC. They are nuts and bolts advice. I may be a bit harsh but certainly none are as welcoming as NC.
I have been a member for 12 years and though over those years I have rarely posted photos. I have learned so much from the many talented and knowledgable photographers on this Forum just by visiting the site daily. I have met one Cafe Member in person that actually took the time out of his schedule to take my wife and I far into the Wyoming backcountry to photograph Wildlife and beautiful Landscapes settings. Before purchasing my Nikon bodies and Lenses the Cafe is the Forum where I start my research.