One of the ways I`ve been promoting my sites, as well as a book that I completed a few months ago has been by writing articles that are partially excerpted from my book. That has helped me immensely to get articles (and bylines with links to my sites) on magazine websites, in printed publications, on podcasts, radio shows, video interviews, etc.
You can do the same very easily just by selecting a state from your site and choosing "10 Free Things You Can Get On Your Next Birthday." Then pitch that article to the media, on blogs, on community websites, etc.
You have so much content that you can also create a series of Widgets on a site like widgetbox.com with headlines that update new offers for specific states or niches. You can see one on the right side of one of my sites: www.imagingbuffet.com
for The Center for Fine Art Photography`s upcoming call`s for entry.
The key is to only give enough info so that people will have to click through to your site. I could see newspapers around the country picking that up, or at least blogs that cover news and special offers.
I think you have a great niche and I wish you and your site much luck and a very happy birthday (whenever that may be)!
Andrew Darlow, Consultant & Editor
The Imaging Buffet
Author, 301 Inkjet Tips and Techniques: An Essential Printing Resource for Photographers - InkjetTips.com