Google Maps

General

Zoom out (<keybs>Ctrl</keybs> + double click for Mac users)

`Mouse right double click`

All hotkeys for Google Maps

General Navigate between controls on the screen	`⭾ Tab`
General Pan to desired direction	`← ↑ → ↓`
Street View Look up towards the sky	`Page Up`
Street View Look down towards the ground	`Page Down`
General Pan wider	`Home`
General Pan wider	`End`
Street View (the rectangle) Zoom in to that point	`Mouse double click`
Street View Zoom in	`+`
General Zoom out (<keybs>Ctrl</keybs> + double click for Mac users)	`Mouse right double click`
Street View Zoom out	`-`
Street View Rotate camera 45 degrees in counter-clockwise direction	`A`
Street View Rotate camera 45 degrees in counter-clockwise direction	`←`
Street View Rotate camera 45 degrees in clockwise direction	`D`
Street View Rotate camera 45 degrees in clockwise direction	`→`
Street View Look up towards the sky	`W`
Street View Look down towards the ground	`S`
Street View Go forward	`↑`
Street View Go backward	`↓`
Street View (numpad) Toggle 3D mode	`3`

Similar combinations for other applications