I would also add these two great sites for finding out what is on
shortwave

The first one is English only and sorted by UTC time (current 5 hrs of
eastern time)

http://www.primetimeshortwave.com/time.txt

The second list is much longer and covers dozens of foreign
languages.

http://www.geocities.jp/binewsjp/bib08.txt

Glenn Hauser's website is another one to catch the latest changes and
latest news on broadcasting, focusing mostly on the shortwave band
www.worldofradio.com

Passband and WRTH are very handy but sometimes are behind in the
schedule due to changes that the broadcasters themselves do that
publications can't keep up with.

Happy listening and good luck.