It is also discussed in A Survey of Global Political Economy 2007 by Kees van der Pijl, also available online in full text. It might be a less radio-active site, and has the advantage of being more recent.
I found Hobson to be very clear. In the summer of 1965 I was the graduate reader for a senior level course in 20th Century Britain and The "New Imperialism" was one of the assigned texts. The professor asked who in the class understood and could explain Hobson's thesis. Mine was the only hand to go up. I always waited to see if someone else could answer before raising my own hand, to be fair. But it was summer school, a lot of the class was just there to get what they hoped would be three easy credits and were business, or other liberal arts majors, not history majors. As the Dutch said while fighting the Spanish: "It is not necessary to have hope in order to persevere."
