>>So do I! It helps me feel more connected to the wider fammish community on DW, <<

Sooth.

>> even if there are not as many fandom-specific communities now as there used to be in LJ's heyday.<<

Not quite as many, but the big fandoms can still rack up dozens of communities, fests, etc. I'm keeping an eye out for the places big enough to do these mongo lists, because they have so much potential.

Also, I'm having considerable luck through followfriday. Most of the time when I post a thematic list of active communities, one or two people say they've subscribed to a new one. So the more people I can get to make lists based on the things they see, the more of Dreamwidth and fandom and other interests we can cover.

If you want to try your hand at making a list for your favorite topic(s) then I'd love to see that too.