Pittsburgh Post-Gazette's readers voted to keep Supernatural, placing the series in first place (out of all the CW's shows). For the full resuls click here, and for results by age/gender, here.
From post-gazette.com:
[…]Young female fans of The CW's low-rated "Supernatural" attempted to raise the profile of their favorite show, even unrealistically boosting it into the Top 10 early in the voting, but it quickly fell out. Among CW shows, "Supernatural" was tops among female voters but did not rank among male voters. This year, 66 percent of votes came from people living in Western Pennsylvania and more women (62 percent) voted than men (38 percent).[…]