There are many ways you could promote your IBO. You could write a blog post. You could use advertising on different advertising platforms. You could put your link in groups on Facebook. You could Tweet about IBO. You could write an article for LinkedIn and Google+. You could do a video for YouTube and also share it to Facebook.
To help people once they get in I strongly suggest they get on the Wed. webinar with Kris. I think they will find a link to sign up on the IBO Newsletter page.
Hope that helps.