Hi guys,
Great subject, and lots of useful resources. We just launched a service called
Japanese Accelerator which focuses on helping you acquire conversational Japanese. It does cost money, but it is a very useful tool.
There are currently more than 50 simulation lessons which are broken down into categories such as "business," "friends," and "small talk." We add new lessons frequently.
Here is the website
Japanese Accelerator won't really help you if you are looking to master Kana or Kanji but it is proven through university research to help increase conversational fluency and listening skills.
We'd appreciate any feedback you have for us!
Aaron