Fisicx, I did say that some of them are merely bookmarking places that do not have direct links. Some of the bookmarks are private while most of them are public. When you enter them, you have to check the "public" option.
If you do searches on the internet, you will see that a lot of these sites do show up in searches.
Some of these sites are huge and popular and give you a direct link. Newsvine.com for example is huge and you can bookmark a specific article there and it does give you a direct link back to the article.
You are the guy that said craigslist doesnt get picked up by google even though if you do a Google.com search for the keyword, affordable marketing services"
http://www.google.com/search?hl=en&r...eting+services the Craigslist ad I had ad I had placed on there comes up on the first SERP.
So before you rip on it why dont you give it a try first.