Years ago, I started to write a book about giving good conference talks. The title was Speaking for Hackers.
Turns out I ran out of steam and didn't finish, but I think what's here is worth reading.
The book is split into three sections: before, during, and after your talk. There's also some raw notes with ideas that never made it into polished prose.
Many thanks to my employer thoughtbot for sending me to the conferences where these ideas were developed.
Feel free to copy and share this, but please don't use it for anything commercial without my permission.