It looks like the new owner of ReggaeDubWise has taken the site down. The comment on the facebook site (not managed by the current owner) says:
It appears that the new site owner bailed on reggaedubwise.com He will not answer any of my emails and it appears they suspended the site. I have all the software and a new domain name. I do not want this new project to be reggae only but have many other genres similare to reverbnation.com.
Although there are a lot of additional great netlabels out there serving the dub community, RDW has always been a great home for dub music and the source of great dub for The Dub Zone and The Dub Step Zone. It’s always had a rocky road, especially as the last owner has cancer, but let’s hope something good happens.