Gofwd is a project mainly written in Python, it's free.
A personal short-url alias server
To start the alias server % python gofwd.py -d gofwd.db
You can add alias by http://localhost:8080/alias/yhoo
You can go to an alias by http://localhost:8080/go/yhoo
If you set your local DNS server (or /etc/hosts) to point go -> 127.0.0.1
then you can just do go:8080/go/aol