When I returned to the MUGEN scene in 2013, I have been using nicovideo.jp for showing my MUGEN release videos and using it as a medium for the big MUGEN Japanese fans base.
nicovideo.jp is just like the Japanese YouTube, and its MUGEN fans is very big.
So, my little MUGEN proposal for all nicovideo.jp here, is about how we can use our nicovideo.jp user accounts to promote MMV's MUGEN releases, in hope of introducing MMV to the big MUGEN Japanese fans base.
I do this little MUGEN proposal now because the popular Japanese MUGEN news web site, 1日１キャラ～mugen～ (roughly means "1 character 1 day ~MUGEN~) has been inactive for many months since 2015-11. Well, even if this popular Japanese MUGEN news web site is still active, the web site master may not keep up with MMV releases, because I believe he/she/it focuses on MFG more/only like the others.
Most MUGEN Japanese fans only know about MFG honestly speaking. So, without that popular Japanese MUGEN news web site's regular update, the nicovideo.jp is one of the few medium we can try for now. There are some others like 2ch, but I think we can start with a simpler one like nicovideo.jp first.
I am already trying to use nicovideo.jp to promote my own MUGEN releases since 2013:
Now I will be trying to post some of our MMV members' MUGEN release videos, just to hope to let the big MUGEN Japanese fans base know of our MMV MUGEN existence.
Therefore, if you have a nicovideo.jp account then you are now encouraged to post some MMV's MUGEN release videos and put some MMV hyperlinks in your nicovideo.jp video description.
I will regularly update this topic's replies to tell which MMV members' MUGEN releases are added to my nicovideo.jp channel.
So, hope to see your nicovideo.jp channel showing some cool MMV's MUGEN releases videos!
By the way, this is the nicovideo.jp BBS: http://bbs.nicovideo.jp/
You might find some very new or "hidden" Japanese MUGEN stuff (i.e. to find out where some Japanese MUGEN creators/authors have moved to after their disapperance) if you care to browse their frequently-updated MUGEN Q&A.
And, this nicoMUGENwiki http://www30.atwiki.jp/niconicomugen/ serves as an online WIKI where you can find some useful Japanese MUGEN database and their latest MUGEN activities.