Check out the latest blog post on Global RT (http://globalrt.org/category/blog/). 

But please note! 

Only the mail list is available at this time, not formal membership with MPWB. We are still working a formal membership process for our Canadian and US/International members. Separation of membership types is necessary in order to comply with both US and Canadian not-for-profit status. We hope to resolve these issues shortly. Thanks for your patience!