ctrl+L gets you to the address bar. "?" + your query forces a default search (so you can do ?http://www.cnn.com and it will actually search for cnn.com, not take you to the site). If you add keywords, then you just ctrl+l then type, say "php in_array" and your query gets submitted directly to php.net's search engine (if you've pre-programmed it). This is actually very much like Firefox's implementation.