You should link madebyloren.com from the footer of your t-shirt page - the benefit to your blog because of a link from a viral page will outlast the t-shirt sales. :)
Thought about it, but decided against it. First, there is absolutely no content on my blog as of right now, so no reason to return ever. Second, I don't think general demographic that visits snowday2011.com would necessarily benefit or appreciate the content that will eventually be on my blog (startups, programming, design, hacking). Third, I've planned on posting a detailed account of the project (including hits, rough financials, etc) since inception, and I don't know if I want this information to be readily available to every Tom, Dick, and Harry who happens to stroll through the site.