Hi.
Social Marker is a site that directs you to over 400 pages of Social Bookmarking, it is not automatic but it helps you write because some items such as name, url, etc. and you list them all. Worth your time and to register at all.

http://www.socialmarker.com/

The records are manual but are well worth it. Keep only one email for this purpose because some sites require email confirmation.

Jeez there is too much adds for me on this site, each click is close to nightmare ...

Have you tried the service ?

Yes, it's good.
You need to put one at a time takes a while but at least they're 400. Some give error but it is the minority.
Open an email just as you will receive for this very span.