Top of foot pain is a common problem. In older people it is often due to problems such as osteoarthritis and in active people, a common problem is dorsal interosseous compression syndrome or a tendonitis. More often than not the problem is due to alignment issues with the foot.

Resources:

http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=52095

http://podiatric.blogspot.com/2011/09/top-of-foot-pain-management-in-barefoot.html

http://www.foot-health-forum.com/forum/showthread.php?t=78423