.
I read somewhere that if you add:

  
“&tbs=qdr:n10

to a Google search that it will then
show the results of what they call
"the last 10 minutes"

Not shure if that means:
sites that have changed during the last 10 minutes
or somethimng else.

They said Google is experimenting with realtime search
not shure if this works for any site or just
(known to google) frequently updated sites (news...etc)

Maybe an interesting tool.

Radio