Q. How do I get address line search shortcuts to work in Safari?

For example:  In Firefox I can type "wiki xenon" and it will open the wikipedia page for Xenon.

A.  Install Sogudi

Download a Sogudi that is compatible with Safari 3 here:

Sogudi 0.47 Beta Universal

Installation for Leopard (from here)

1. Delete $HOME/Library/InputManagers/Sogudi if it exists.
2. Delete /Library/InputManagers/Sogudi if it exists.
3. Expand the "tgz" file above.
4. Drag the "Sogudi" folder into /Library/InputManagers
5. Use Terminal to:
1. sudo chown -R root:admin /Library/InputManagers
2. sudo chmod -R go-w /Library/InputManagers
6. Restart Safari