While looking through The Congressional Record today for interesting items for my new blog Lying Scum-Weasels, I came upon this interesting speech by Sen. Ron Wyden (D-OR) about network neutrality. In it, he presents three examples of anti-competitive scenarios that could (though, of course, might not) occur if telcos were allowed to discriminate against certain traffic in the way permitted by the legislation that recently passed the House and is under consideration in the Senate. I found it remarkably readable and reasonable as a representation of the potential issues. It is not overly technical, yet does not condescend to the audience.
Naturally, network neutrality is a complicated issue, as most issues debated in Congress are. Neutrality and discrimination can mean different things, and for a broader discussion of the types of network discrimination that are possible, I recommend Ed Felten's paper. It's ten pages, and features a handy "Take-home lesson" at the end of each section.