[bakman12]

Is still matter I think, seo is good for the social promotion of your web site. people who find your web site by searching google or yahoo are more likely to promote it on facbook, twitter, google+ or other social media channels.
seo is important for the smooth running of a big web site. web sites with more than one author can benefit from seo in a direct and indirect way. their direct benefit is increase in search engine traffic and their indirect benefit is having a common framework (checklists) to use before publishing content on the site.