Short and sweet: if you are interested in software you need to visit this site.
We covered this list in 2011, here's the 2014 version, bigger and better.
Whether you are a developer or a dabbler there is something for everyone at Scott Hanselman's 2014 Ultimate Developer and Power Users Tool List for Windows.
There are several categories that have tons of useful information covering a large (did I say large? I meant amazing) range.
Here are a few of the categories; I'm not going to list all of them and my fingers would fall off trying to give you an overview - you really have to see them for yourself. It's that good.
From Scott: "Everyone collects utilities, and most folks have a list of a few that they feel are indispensable. These are all well loved and oft-used utilities. I wouldn't recommend them if I didn't use them constantly. Things on this list are here because I dig them. No one paid money to be on this list and no money is accepted to be on this list."
(New Entries to the 2014 Ultimate Tools are in red. There are dozens of additions and many updated and corrected entries and fixed links.)