Discworld punes in depth analysis

I have been reading through the Discworld series, and I'm about halfway through. A couple of times during, I've looked up some references and stuff and found a website online where they go really in-depth into these books and I loved it. I've been trying to find it again and am at a complete loss. It looks kind of an old-timey page with text mostly, and it's blue. My brain fog has me completely stumped. Wondering if anyone knows about this or can point me in the right direction.