I have been reading “The Myth of the Garage.”  Excellent article on feedback:

http://www.fastcompany.com/magazine/146/made-to-stick-watch-the-game-film.html

Some great advice from Seth:

http://sethgodin.typepad.com/seths_blog/2011/12/insulate-yourself.html

I especially like “Seek out uncomfortable situations” since reading The Flinch.

A very useful page on public speaking:

http://www.hallway.com/blogs/schools/school-resources-public-speaking-guide/