Here's a fun project attempting to explain what exactly is happening under the hood for some counter-intuitive snippets and lesser-known features in Python.
While some of the examples you see below may not be WTFs in the truest sense, but they'll reveal some of the interesting parts of Python that you might be unaware of. I find it a nice way to learn the internals of a programming language, and I believe that you'll find it interesting too!
A curated list of references for development of DOS applications.
Free service that gives wildcard DNS for anybody for free. Including RFC-1918 IP's. Pretty cool how they did it. Software is an add-on for PowerDNS.
3697 links, including 185 private