SE Radio did an interview a couple years ago with a Patrick Kua, a Tech Lead from ThoughtWorks. I thought it was a good discussion. He also wrote a book on the subject.
Hope this helps!
This looks spot on. Thanks!
Seconding this, Patrick Kua has some great insights and reading his book was really helpful for me when I first became a Tech Lead.
He also has some good smaller posts on the topic (also on the ThoughtWorks blog):
5 Tips for Being an Effective Tech Lead
Three Common Mistakes of the First Time Tech Lead
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