Add to Any is good, it's a button you put on your website and any visitor can use to bookmark the page. If you roll over it, it will display the 12 most popular social marking sites. But then if you click the little down symbol it displays loads more social marking sites! Add to Any
I used autoposter and my hosting suspended my site. Be careful not to check all the features because uses too much memory. Anyway I recommend Onlywire, it is free and you send with one click to 27 social bookmarks. There is also a wordpress pluglin for it.
I have look around on the internet, i cannot find such tools to autosubmitter to social bookmarking site with a single click. everytime after i post a new content on my blog, i have to share one by one social site, which is very tiddious. I need something like auto submitter to social site, search engine, and soon.
you can try SocialPoster.com. I have not tried it myself, but I just checked it out and it looks good.
I use IMautomater and it has a free option. Also tried using Bookmarkwiz but have had some problems with the results. It requires some configuration but signing up to bookmarking websites is very easy
socialmarker is good for sure you can purchase the tool and start bookmarking without any risk. don't use free version sometimes it does not work instead take upgraded version by placing your order