Anyone who goes nuts (like me) waiting for rejections to show up in their inbox knows about the Submitting to the Black Hole web page at Critters. It is a huge amount of data and I find myself clicking and scrolling entirely too much.
I wrote a little PHP program that spins through the black hole data and displays only the data points from the last 10 days. You get to see what pubs are reporting and you can quickly see if the pub that your interested in is active.
link: Black Hole Extension. (Be patient. It has to pass through a whole bunch of data).