As of recently, I have been questioning the value of social bookmark links. Of course, I will always continue to build them to diversify my links, however, I am curious as to whether or not they are effective. I always combine a ton of SEO strategies, so I never really notice which ones are the ones that are effective. To date, I have included Social Bookmarks in my SEO plan. I use them for all tiers of my backlinking strategy. I find that they are the easiest kind of back link to attain mass amounts of for really cheap (besides sb and xrumer blasts obviously). I'm not worried about a penalty as I believe that penalties are over exaggerated and rare. I am just questioning their value to a site. So the main question is: is it worth building/outsourcing social bookmarks to your money site? Feel free to discuss this and add personal experiences...All input is appreciated.