The positive side of such repetitive posts is that sometime there are some newcomers which will get to know about these amazing resources, which will be helpful to them in many different ways.
They are nice guides (even if I remember them being bashed in the old days, or maybe that was just his Win32 programming guide), however the audience of them (programming network sockets in C) seems lost here.
https://news.ycombinator.com/item?id=9445692
https://news.ycombinator.com/item?id=584557
https://news.ycombinator.com/item?id=9623813
https://news.ycombinator.com/item?id=5989561
https://news.ycombinator.com/item?id=7584974
https://news.ycombinator.com/item?id=286701
https://news.ycombinator.com/item?id=6779200
https://news.ycombinator.com/item?id=9018621
https://news.ycombinator.com/item?id=7917102
https://news.ycombinator.com/item?id=4666318
https://news.ycombinator.com/item?id=1593037
https://news.ycombinator.com/item?id=337371