Will submitting a site to busy Social Networks improve Search Engine rankings?

[Philippine Beach Resorts]

since you guys submit to a couple of social networks, does it improve your site's visibility in the serps? thanks!

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not sure, but I find some listings from SU in the serps of google.

since most of the networks use "nofollow" in the link code it should not help very much in Google.

But I think you have some linkbait for great articles if people link to this from their own sites

Yeah, the nofollow kind of spoils it SEO wise. But a link is a link and if its on the right page it can bring in some visitors to your site and some might even bookmark your site and return later. So for traffic building these sites can be used.

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Your rankings are improved indirectly.  If a site got popular in a social bookmark, then many scrappers, bloggers and aggregators will link to it, so you'll have better rankings.

the nofollow issue is kind of vague ... I have the feeling that even with "nofollow" you do get some link juice from the link ... since lots show up in the google/webmasters/links

But back to the original question:
there is a lot of social networking places that don't use nofollow
for example I know digg, propeller, sphinn don't use nofollow but there is probably others
stumbleupon, reddit, delicious do actually use nofollow

[Philippine Beach Resorts]

pages i submit to propeller shows up first when i do a site search. and its the only social network im active at the moment. i am considering dzone as well. any opinions about it?

I have mixed feelings about the no-follow and their effect on SEO.

I've made several comments on one of the blogs we talk about here frequently (won't mention his name, but he works for Google ) and all of his links are no-follow yet they come up as the first incoming links associated with my linked site when using Yahoo!'s Site Explorer.

[Philippine Beach Resorts]

i read somewhere that yahoo spiders dont obey the nofollow tag.

Ahh, that might explain Google saying paid links should be no-follow.

A lot of social networks place direct links with YOUR anchor text (title of news) and relevant content (news description). Of course social networks get not only traffic to your site, they gives backlinks too. And good backlinks, so you can use it in your own taste!

it can bring in some visitors to your site and some might even bookmark your site and return later

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