how to use social media networks for search engine optimization?

[BLove]

How social media like Digg.com, Stumbleupon.com , del.icio.us.net and other similar website could be used for Search Engine Optimization?

Please explain with small examples thanks,

[ArnoldB]

There are many ways to use social media sites for SEO and increase website traffic:

For example, there is a particular and effective strategy you can use for tags, your photos, profile and so on.

This website gives you more details on this:
http://www.squidoo.com/webtrafficthunder

[San Jose SEO]

SEO is about what can be done on your website. The use of social media is about marketing while they are connected they are separate techniques.