A 4th grade teacher with a web page, we'll call her Mrs. Smith, picked up my first linkbait and included it in the paper and virtual version of a list of resources she sent home with parents.
Mrs. Smith is now in the good company of several state departments of education, a few curriculum guides, various and sundry teachers, and a smattering of homeschooling bloggers.
As to the first site that featured my product qua my product, as opposed to something free I gave out to get my name out: a particular 3rd grade Spanish teacher, on her personal blog. She liked it.
I also got a good chunk of nepotistic links when I was starting out from other software entrepreneurs who hang out in the same forum I do. Ian Landsman (http://www.userscape.com/blog/) and Joel Spolsky stand out from the first few weeks, but I'm probably forgetting people who were no less important to me at the time.
http://www.tuaw.com/2008/10/28/actiongear-simple-yet-powerfu...
(Sorry. Someone was bound to write it.)