Are Wine Spectator reviews biased towards advertising wineries?

.....The implication is thatWine Spectator ratings of advertisers’ wines are approximately one point higher than their ratings of comparable wines from non-advertisers.” .......

For the text of the blog and link to original research click on this link.

Larger wineries pay for advertising and get higher scores which result in higher prices and much higher revenues?

How do smaller wineries compete, or even get their wines tasted?

Grape growers face restrictions on stream-water use

A showdown is looming between grape growers and the agency tasked with protecting fish in the Russian River.

Russian River grape growers are collecting data to counter a nearing state decision on how to protect endangered fish from the impacts of water pumping for frost protection. Click on this link for the rest of the article.