Gerry, if you are going to list members who are knowledgeable, then why not make it a comprehensive listing with areas of members' expertise identified? Then make it a 'sticky' with an identifiable title explaining what it is.
I don't know much about anything, and I frequently have to ask who is the 'go-to' guy for whatever it is that piques my interest at any one time. I haven't been here long enough to know who knows what.
A central listing would benefit us 'old noobies' as well as the 'new noobies'...