Webwork - 11:54 pm on Feb 3, 2004 (gmt 0)

Here's what I believe to be some examples:

1. "This offer expires xx/xx/2004" (Invariably, when this wording is found on websites the day=today. Call to action = Don't wait because it's be too late.)

2. Big red button BUY NOW. (Call to action = Do something stupid.)

3. "Free to the first 100 customers".

4. "We only have X in inventory".

These are likely the most obvious examples of what I believe represent the "call to action" idea.

Am I wrong?

What are other examples?

What are your favorite examples?

What do you understand a "call to action" to be? Is it art? Science? Experience? Learned technique? Skillful means?