Likely most people know it, but just in case, dw_news announced that account creation is ope
https://www.dreamwidth.org/create
Find your LJ friends on Dreamwidth
https://filmgold.com/lj-friends-on-dw/
(this searches your LJ friends list and then searches DW for anyone with the same handle)
Using Semagic to crosspost to DW and LJ
http://kazbaby.dreamwidth.org/694994.ht
If you're coming from LiveJournal to Dreamwidth: Crossposting
http://www.dreamwidth.org/support/faqbr
If you're coming from LiveJournal to Dreamwidth: Importing
http://www.dreamwidth.org/support/faqbr
Community Promo http://dw-community-promo.dreamwidth.or
New users from LJ http://lj-refugees.dreamwidth.org/profi
If you own LJ comms, I suggest making copies of them on DW for the just in case.
Mad that DW isn't as active as LJ? Try getting your friends to join. Post to dead communities anyway. Some might start doing the same.
Edit: 3/15/2013
http://add-a-writer.dreamwidth.org/prof
http://addme-fandom.dreamwidth.org/prof
http://animeaddme.dreamwidth.org/profil
http://create-my-comm.dreamwidth.org/pr
http://dreamwidthlayouts.dreamwidth.o
http://dw-feed-promo.dreamwidth.org/pro
http://fandom-on-dw.dreamwidth.org/prof
http://fandomcalendar.dreamwidth.org/pr
http://fanficaddme.dreamwidth.org/profi
http://followfriday.dreamwidth.org/prof