I'm using Vimium as a key tool in my efforts to become completely mouseless.
http://luigimontanez.com/2010/mouseless-monday-1-vimium-goog...
http://luigimontanez.com/2010/mouseless-monday-1-vimium-goog...
edit: well, hum, strangely, it does not work so well on some pages, skipping section's titles.