Musicloops. Com Try Musicloops. Com for over 4000 tracks of royalty free music.
All immediately downloadable and no PRO fees required. This site is good because the tracks all have to be approved before showing up in the main site. Much like shockwave-sound.
You can also easily purchase a full length track or a 60 or 30 second edit or even short music loops for most of the tracks available. Download just what you need for your projects. musicloops.com/ PartnersInRhyme.Com Partners In Rhyme is a great site to purchase collections of royalty free music.
If you need lots of royalty free music this is the place to get it at affordable prices with the most generous licensing in the business. No PRO fees. partnersinrhyme.com/wmcstore/WMCshop.cgi.
Can't help with specifics, but Podsafe Music Network is a great place to find music of all kinds. music.podshow.com/ You can search by artist name and genre of music. It is the gold standard for podsafe music.
Free registration is required. Have fun with your podiobooks!
Mark, sounds crazy, but without a doubt the best thing to use is Garage Band. There is a very cool way to generate very vibey tunes in Garage Band that most everyone seems to overlook. And of course you can really tweak and customize them (tempo, pitch, length, etc) to fit the mood of your podcasts.
I've used Podsafe Audio: podsafeaudio.com/ For sound effects, the free sound project is good: freesound.org/ I'm not sure how "podsafe" it is (but probably no longer copyrighted) but there is a great site with historical mp3s called the Free Information Society freeinfosociety.com/media_index.php?cat=....
I would suggest Jamendo--a website that utilizes the Creative Commons License, giving access to a large variety of free music. Each individual artist decides how their music can be distributed, but if you found something you really liked, the artist might give special permission (some artists do allow all types of distribution).
podsafeaudio.com/ is easily the best choice on the web. Another great option is checking your local music scene. If you find someone local that has a sound you like they may be interested in recording music for you so long as they get a plug on your podcast!
I would too suggest Jamendo. Com because of the amount of material (listen to Amanyth, as a great example: jamendo.com/es/album/33588 ). Also ccmixter.org/, that uses the CC licenses as well and has some great examples of free music you can use for soundtracks and remixing yourself (female voices are heaven like, by the way).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.