I just went through my bookmarks and quite a few of the links are dead... I've been doing this for decades so that's not a surprise. And not really a big deal. Most of the progress I've seen has been made in the last five or so years. Technical interviews might be horrible now, but they used to be way worse!
A LOT of the articles I've read over the years I have not bookmarked because my idea of a good technical interview is the opposite of what those articles recommended.
I normally read everything interview related I come across in HN or Reddit programming subreddits but I'll also do a search every six months or so and see if anything interesting comes up.
Although I have cherry-picked advice from reading many articles over the years, more importantly I've tried really hard to come up with an interview process I myself would enjoy as a candidate. That factor is very important to me because I think the interviewing process sucks at many companies. It's painful for everyone involved and ineffective. I would tolerate painful and effective. But I think it can be somewhat painless and effective.
I remember getting at least a few valuable ideas from these:
Also ask someone in HR what soft skills you need to improve related to interviewing. And then take classes based on that.
Most importantly, and as the article suggested, interview candidates with another person who has more experience interviewing. With a variety of people. You'll learn the most by doing interviews alongside people who are better at it than you. Practice really is what makes perfect. Especially if someone can coach you.
One final thought, recruiters aren't going to give away the store and teach you how to be a great interviewer, but you can pick their brain with questions. If your company will pay for a recruiter then always go back to them with doubts about your process after every interview. They want you to hire their candidates so they will help out a little with advice. I've heard some great advice from recruiters themselves.
https://news.ycombinator.com/item?id=16673369