Internet archive to the rescue.<p><a href="http://web.archive.org/web/20081218064511/http://www.basecamphq.com/manifesto.php" rel="nofollow">http://web.archive.org/web/20081218064511/http://www.basecam...</a>
Hanlon's Razor (<a href="http://en.wikipedia.org/wiki/Hanlon%27s_razor" rel="nofollow">http://en.wikipedia.org/wiki/Hanlon%27s_razor</a>)<p>I really doubt 37Signals took their manifesto down for nefarious reasons. Changing architecture, codebase rewrites, SCM tool, etc, all could have caused that page to be removed.
I can see that one of the ills of being popular is that there is someone somewhere to write a shitty blog post about every fucking file system operation.
Search any sentence from the linked screenshot, quoted, in Google, for interesting results. For instance: "many of our competitors require a call back".