Q:

First up: What to call this site

This site is currently titled  "Signal Processing" with a URL of "dsp.stackexchange.com". 
You are the domain experts. Does that ^^^ sound reasonable?
The name and URL was chosen because they seemed to be the most "industry-acceptable" terms that potential members would recognize at a glance. 
I prefer clarity and conciseness over excessive precision when it comes to naming. Crowd-sourced names have a tendency to become overly pedantic as each group adds their own little bit. but we don't want to ACTIVELY turn away our core group, either. 
We're looking for brevity and "industry appropriateness" to let people know the intent of this site… at a glance. 
Please let us know if a change is needed; one that will be substantively better than what we have now.

A:

I was actually in the middle of writing a meta question.
Signal Processing is a good name as far as I am concerned; however, dsp.stackexchange.com is not so great. Here is why:
In this question I asked if this site was only for digital or if it was for both. Pretty much universally everyone said it was for both. By putting dsp (being short for digital signal processing) in the URL, people who are new will assume it will only be for digital.
signals.stackexchange.com is the first thing that came to mind, but I by no means support it as a perfect URL.

Update: http://signals.stackexchange.com now redirects to the primary URL, http://dsp.stackexchange.com.

