Bubblews has been banned by Facebook as of today! All shares, links, pages by Bubblews, even private messages with word Bubblews.com is banned. Bubblews links to bubbles can no longer be posted. The main Bubblews.com and any page created by them has been shut down.
StumbleUpon has banned them as well.
So, maybe Bubblews is next in line to close shop!
UPDATE: Facebook, for some unknown reason, has removed the ban of Bubblews. It did not take long for the spammers to appear.