Paul's comment got me searching to see what other threads might already have discussed recommended players. In the process I realized how many different threads there are that provide important tips of all types. I don't pretend to have found them all but here are a few for cross reference purposes.

Figuring out alternate tunings
For Guitarists
Guitar Picks - What's your favourite?
Ragtime Guitar
Bluegrass G run
improvising folk, blues, jazz etc.
Musicians Little Secrets

I'm sure there are many more. Perhaps others will provide more links as they are rediscovered.

      - Mark