I've been using this free screener a long time and never hear it mentioned. It's from USA Today and good for intraday scans or end of day either.
End of day:
http://markets.usatoday.com/custom/usatoday-com/html-mktscreener.asp
Intraday:
http://markets.usatoday.com/custom/usatoday-com/screener/screener.asp

End of day:
http://markets.usatoday.com/custom/usatoday-com/html-mktscreener.asp
Intraday:
http://markets.usatoday.com/custom/usatoday-com/screener/screener.asp
