COMMERCIAL RULES...clarify endorsements and mentions.

Is it allowable to mention and/or endorse someone else's commercial operation?

I have at least one local builder who has an associate that decorates guitars beautifully.

I enjoy giving mention in very topic that includes this subject.

I am in no way affiliated with this company. It is purely for the education of the members.

I'm hoping that this type of reference can continue.

Thanks,
/bingy