Official SuperMemo Sites

[Jon]

Here is a list of what appears to be the official SuperMemo sites. If anyone knows the differences between each, then that clarification would be great so I can edit the reference.

https://www.supermemo.com/

http://www.supermemo.net/

http://www.super-memo.com/

http://help.supermemo.org/wiki/SuperMemo

http://super-memory.com/help/faq/supermemo.htm

http://supermemopedia.com/wiki/Main_Page