Twitter asks ‘What are you doing?’
Google Latitude asks ‘Where are you?’
del.icio.us asks ‘What are you browsing?’

As in science, one of the most important things in web application development is thus asking the right question (at the right time). A properly phrased question can identify your niche along with giving you a guideline for keeping your focus on a single problem.
As some people might notice, I tend NOT to write much anyway. So until the writer in me is back (if there _is_ one at all), I’ll try to write something even if its a one liner.