Pretty much goes without saying that the GFF site is so comprehensive, that I almost hesitate to mention it. However, there has to be some beginners (which this site is meant for) that will benefit from a tip toward the site. A great site on how to’s for the beginner to the pro. The tutorial on the Dirty Whites is perfect and each photo can be enlarged to provide the necessary details for constructing a F.I.T.S. (Frodin) tube fly.
SwittersB & Exploring 