RSS feeds for Howl.fm content (Howl subscribers only)
Login to HowlNo, but a separate service has been developed for Stitcher subscribers: Unofficial RSS Feeds for Stitcher
As long as people continue to use it, or until official RSS feeds are released for Howl subscribers.
Fullscreen Direct (formerly known as StageBloc) is the service Howl.fm uses to manage memberships. Logging into Fullscreen Direct allows this service to validate membership to Howl.fm.