Very newbie question: Can you just bookmark w/o pinging?

I have a bunch of cloaked sites set up and I'm still looking for a system to automate the pinging process. I do have BMD and SE Nuke. Is it necessary to ping if I am bookmarking? Aren't they sort of the same in that the spiders will come but I would get higher rankings from getting backlins?

Sorry for the newbie question. Thanks. Much appreciated!

Bookmarking sites get crawled pretty frequently so chances are that your links will be found but pinging won't hurt and gets you a second chance just in case the link gets missed or not followed on the first pass.

Doesn't the new BMD have a pinging service anyway?

ping is not for backlinks its just to inform there is a new page/update for search engines.

If you have an active page you don't need ping. But for new pages and accounts pinging is quite helpful.

I think everyone has answered your question thoroughly, but to re-iterate, pinging isn't *really* necessary for social bookmarking -- the sites are crawled and indexed so quickly anyway.

Thanks for the answers everyone! I guess from all the info, I take it that pinging isn't *as* important if I want to be ranking better with my cloaked sites? I was doing it by hand (one site at a time) and it's just too time-consuming (until I find something better) and I would rather focus on using SE NUke and BMD. I do use SE Nuke to ping the articles I submit to the social networking sites, so I assume that is a better way to get indexed as opposed to just pinging.