Hi, I've just have a suggestion from someone to make use of disqus.com service to manage comments on my blog. I've tried it and it seems quite useful with e-mail and website forms above the comment box. I just don't like how they spamming the links to their website and call-to-action to join their site around the comment box.

Do you think it's worth to add their service? I personally don't like any link that makes visitor navigate away from my page (I'm not against link to the service provider; I've used "addtoany" service and they put their link too, but not as excessive as this one).
Do you have other service provider suggestion?

Also (this may off topic), is articlemarketer provide service on social bookmarking as well? If it's not, what service should I use regarding bookmarking?