I've been using sites like stumble upon and digg every time I make a new page on my sites. Often time the new url would appear in Google index in a matter of hours.
Once site I would recommend is socialmarker.com . It has a list of all the tops social sites and a list of dofollow ones too.
There are several social bookmarking sites that helps your urls to get indexed faster they are really beneficial. They are the starting stone for your website SEO.
This is such a good point. People think that social websites can't be used to promote your site, but they are such a good resource to use. Just from twitter I have built my blog and it has become very good.
I have paid someone on Namepros.com around only $4 to manually submit my website to over 140 do - follow social bookmarking websites such as Digg,Stumbleupon and alot of other stuff!
You should give it a try it brang in very good results for only $4.00!
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