second language: blogs
2 blogs in the directory cover this.
Ace Linguist
Sounds of human language in media and history.

Second Language Strategies
Learn Conversational Spanish or French in 3 Months. Personalized Lessons from a Polyglot Educator. Not ready for classes yet? Check out my Second Language Strategies to apply them to your target language.
Machine-readable: this list of feeds, as JSON · their recent posts, as JSON Feed · all topics
