I originally got the idea from Python for Finance. But there are nomerous other examples on how to get high Netfonds (here and here).
They don't seem to work any more:
http://hopey.netfonds.no/posdump.php?date=20121130&paper=GOOG.O&csv_format=csv
seems to yield nothing. Has anyone successfully scraped data from them? Are there other free sources?