Just so it's near the top:
'The Methods of Rationality' ties in with HPMoR, and sounds amazing. To me.
'Methods of Rationality' hadn't been proposed at the time. I agree, it's pretty good. Perhaps:
Title: The Methods of Rationality
Subtitle: How to Become Less Wrong/Becoming Less Wrong
The Title:Subtitle format seems to be popular.
Quantum Computing Since Democritus got me thinking that we may want a more riveting title for The Sequences, 2006-2009 ebook we're preparing for release (like the FtIE ebook). Maybe it could be something like [Really Catchy Title]: The Less Wrong Sequences, 2006-2009.
The reason for "2006–2009" is that Highly Advanced Epistemology 101 for Beginners will be its own ebook, and future Yudkowskian LW sequences (if there are any) won't be included either.
Example options: