All you need to do is create a good little blog post, write a short paragraph on some meetup or forum, or even post to some newsfeed, and if you get more than three people clicking that link and coming back to the Silicon Valley Code Camp Web site, you can get a link posted back to your home page. It’s that easy!
For details, read the post here: http://peterkellner.net/2011/09/21/boost-your-seo-and-promote-silicon-valley-code-camp-at-the-same-time/
Of, if you’d prefer to just watch, here is a youtube video that explains it:
And if you think you just know what to do and don’t any directions, you can start here: http://www.siliconvalley-codecamp.com/ReferralUrlLinks.aspx