O’Brien Cellars, a brand of O’Brien Family Vineyard, said Tuesday it’s started a “progressive” philanthropic program to donate 20 percent of revenues from its online Equality Wine Store to a civil rights group that supports an end to California’s ban on same-sex marriage.

The family-owned Napa vineyard and winery said it will automatically donate those funds to Equality California, a San Francisco-based lesbian, gay, bisexual and transgender civil rights organization. Winery owners Bart and Barb O’Brien said their goal is to help wine lovers support equal opportunity…

“We hope to raise over $100,000 for EQCA in 2007.”

…Other business-related supporters of Equality California, listed on the advocacy group’s web site, include Contempo Homes, the Evelyn & Walter Haas Jr. Foundation, Proteus Fund Inc., Olivia Cruises and Resorts, Atlantis Events, Century Crowell Communities LLP, MTV Networks/Logo, Shadowrock Development Corp., AstraZeneca Pharmaceuticals LP, Edison International, Foley & Lardner LLP, Gap Inc., Latham & Watkins and Wells Fargo.

Kors said the California State Automobile Association and Comcast have also signed up recently as sponsors of Equality California.

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