The easter-egg hunt for scholarly PDFs

The Open Source Paleontologist has few good suggestions on digging up electronic copies of scholarly papers when you’re outside the walled garden of institutional subscriptions. Google Scholar is getting better at identifying online PDF copies related to its results, but given that it doesn’t seem to know about my doctoral advisor’s considerable archive (he posts PDFs of all his pubs, as more and more academics do), I have to wonder what it’s missing. I’ve started going there to check for PDFs before resorting to an [$-a] tag, though.