I do seek links from outside my customers and recommend it as a tactic, although it is not the only reason that I blog or participate with folks. You can compare it to other companies trying to get written about in the New York Times despite not selling to newspaper reporters. Programmers and Internet businessmen control a metric tonne of links, schoolmarms and the Jane Austin webring not nearly so many.

I do take minor exception to the comment about content quality. With the proviso that I'm making bingo cards to teach lessons to school kids, I'm usually making pretty darn good bingo cards. Search for [biology bingo] some time and compare my site to the other options.