Here’s a video of Ron Paul promoting the newsletters in 1995.
The conservative Weekly Standard has more about the Ron Paul newsletters.
I have to be diplomatic about this and not comment, but I think that this revelation is good for the Republican party. I recommend that Ron Paul voters look into backing Michele Bachmann, which gets you all of the conservatism, but without the conspiracy-theory baggage. If electability is a concern, then we should be looking to Newt Gingrich.