expand_less Podcasting starting points:

https://www.reddit.com/r/podcasting/wiki/index

Podcasting tips, etc.:

http://thepodcastersstudio.com/
https://www.reddit.com/r/podcasting
Also see https://www.reddit.com/r/podcasting/wiki/related_subreddits

Feedburner?
Combine (Combine Soundcloud feed with Sam's? - need a different service for that?)
URL? Host our own feed? (from Feedburner?)
 
Places to get listed:
http://thepodcastersstudio.com/where-to-submit-your-podcast/
https://itunespartner.apple.com/en/podcasts/overview