As he has no amateur radio license (yet ?), and no other way to let you know, the author of the SOTAwatch Filter asks me to inform you of a new major release of his chaser tool.
As the name implies, this web application shows the SOTAwatch spots, but allows you to only display the bands/modes/calls/summits you are interested in, and warns you when a new spot matching your selection comes up.
I use it for some time now, and recommend it to all chasers. A nice unique feature is that it works on most recent devices, from personal computers to smartphones and tablets.
If you like it, please spread the word 
Christophe