So I was looking at some of the features WordPress sites and came across this Google Ventures one:
http://www.gv.com/
What I found particularly cool about it is if you click any of the links on the left (team, for example) you are directed to their /team page. However, the menu bar on the left hangs around and becomes this kind of expandable thing. You can mouse over it and it moves in and out. Clicking on another link then keeps the navigation bars smooth movements going while the next page loads. It's as if the navigation bar never needs to reload and is just there all the time, independent of the links that are loading.
I was wondering, how might they have accomplished this? Everything I've always done had the whole page reload when a link was clicked (except AJAX stuff, but then the URL didn't change).
Any insights welcome!