Is it not worth considering putting "forward" links into older essays, so that when you write an essay it gets referenced by other essays, even when they're older?

Perhaps you don't have time, but would you consider adding links that other people suggest?

It would be interesting to do to this what I do with my SiteMap, and colour nodes darker if they have more traffic.

http://www.solipsys.co.uk/new/SiteMapExpt.html?YC_News