what makes a company 'Dead'?

buxfer might or might not fit into this category, the site is still up and functional, but it doesn't seem like it's actively maintained: http://techcrunch.com/2010/08/17/buxfers-founders-both-work-...

http://getsatisfaction.com/buxfer/topics/is_buxfer_dead

a simple yes/no from one of the founders would be simple enough.