mod_rewrite
New Handbook page: How to preserve old URLs during Drupal to Drupal migration by preserving nids and using mod_rewrite
Here it is: http://drupal.org/node/570906
Let me know if there are any grievous errors.
-glass.dimly
Scalable static file hosting and some thoughts on Amazon S3
So, one of the big things with static file serving is that it requires an entire Drupal bootstrap, which sucks up a lot of system resources. We have work to do in Drupal/the File API to support some interesting scalability options, remote files, etc. etc.
But, I think there are some interesting models for doing highly scalable static file serving outside of Drupal (and Amazon's S3 is cool).


