Newbie question: How does this 5 minute volume work? I mean, it updates every 10 seconds, so is it the average of the last 5 minutes, or weighted average, or... what?

One thing that would be great is...some kind of way to mix and match? For example, If am only interested in Poloniex prices, so why not have multiple coins from Poloniex on the same page? Or even mix and

Yes, if you would download Bitcoin Checker on Android phone..its a good example of two different sounds.

Put a Donate link somewhere. If people use it, they may pay a little for it.