Finally you can browse Visualizeus with only one hand, and even more, with only one key! But consider yourself warned: It’s addictive. Period. A lot more than before.
So, I’ve followed the usual j/k hotkeys approach to scroll up and down the site, similar as Google Reader does, plus some a/s/d/f hotkeys bonus, for those like me with one hand in the w/a/s/d area and the other in the mouse (yeah, too much Q3 in the early days). Also the space key is handy ;)
Just play around and see which combination works better for you!
Some other random user interface improvements are below. Suggestions are welcomed, as always!