You can jump to the search box from anywhere on a page, which is especially useful on long articles, so you do not have to scroll up to get to it. To do this, press ⇧ Shift+Alt+F (this works on most systems). The F stands for "find" or "focus".
For a search box in which the cursor is already focused, use www.wikipedia.org. You can drag-and-drop this link onto your browser's toolbar, and click on it anytime for immediate access.
This user does not wish to speak or hear dumbass, but is resigned to the necessity of at least understanding it in an environment of massive collaboration.