I also know about Bookmarking Demon. But I am not comfortable with the idea of spamming so many links directly to the "money site", despite bookmarking 5 links a day. I am also not comfortable about spamming many links (hundreds) to the backlink articles that lead to money site. People call this backlinking your backlinks, aka 2nd layer of links.
I'm pretty sure Google can see everything that is linking to a site. Even beyond the 2nd layer of links.
So tell me guys, how do you use social bookmarking?
I have also heard about backlinking each EzineArticle to raise its PR, using SB.