http://serverfault.com/questions/330638/forward-my-http-requests-from-my-ip-to-another-server
Forwarding all web traffic from an old to a new server with nginx, includes a sample config for nginx. Useful.
http://matthew.mceachen.us/blog/automatic-disposable-email-addresses-for-google-apps-611.html
How to create "minus addresses" on Google Apps. It involves creating a catch-all and creating filters that forward the messages to the appropriate account. Clever workaround.