What is the social media?

Hi everyone,

What's the social media hub and how can I use it for increasing visits and PR of my site?

thank you
Erika

First of all I don't know that how much the social media hub can help you to increase your PR.
But yes, it can help you to reach to more and more visitors.
Following 3 links can help you:

http://www.seomoz.org/blog/social-media-marketing-eh-lets-see-whats-in-our-bag-o-goodies

http://www.seomoz.org/article/social-media-marketing-tactics

http://rohitbhargava.typepad.com/weblog/2006/08/5_rules_of_soci.html

Good Luck

Its depend on your services and product that what are you going to promote.

Thank you, it's a good place to start

There are many.

Technorati.com
del.icio.us
StumbleUpon.com
MyBlogLog.com

Just to name a few.

S- social
M-media
O-optimization

Social Media Optimization is a new strategy for all SEOs and its working great. As we know that 95% visitors have online profile at social networking sites. Giving detail about our business on these sites will be a new evenue for optimization. SMO techniques can drive traffics via social networking channels. Now you have another choice for optimization through SMO at social networking sites.(del.icio.us).