What is an “Instant Web Computation” as shown on the Wolfram Cloud Usage Dashboard? How do you create one with Mathematica 10?
Perhaps it means this?
Hi Sascha! An Instant Web Computation is a Delayed expression that has been CloudDeployed: Delayed—Wolfram Documentation.
It is essentially an APIFunction with no parameters, although it does have a convenience superpower in the UpdateInterval option which sends a HTTP refresh header which instructs browsers to periodically refresh the output.
And as Joel just told me, you can find examples at: