The Grandich Letter
Grandich Publications publishes The Grandich Letter. First published in 1984, it provides commentary on the mining and metals markets. I personally find this investment newsletter helpful in performing my due diligence on potential investments in resource and commodity related stocks.
(Starting around 2009, Peter came under the wing of Agoracom, and you can read his thoughts at this new blog address.)
In addition, the company also provides a variety of services to publicly-held corporations on a compensation basis.
Peter Grandich seems to fully disclose compensation in the form of both cash and options at the end of each issue of his publication.