Regarding the rant at the end about papers being behind paywalls (which, BTW, I agree with): If anyone doesn't know, CiteSeerX is a search engine which finds,

Regarding the rant at the end about papers being behind paywalls (which, BTW, I agree with): If anyone doesn't know, CiteSeerX is a search engine which finds, collects, and caches publicly available papers from around the internet. It's invaluable for finding freely-available papers which the major sources (like the ACM) only make available from behind paywalls. Here's CiteSeerX's page on the paper in question: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.77.5242&rank=3&q=A%20nonrecursive%20list%20compacting%20algorithm&osm=&ossid= http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.77.5... I find it fantastically useful.