It's called the Big DOG, and it's going strong! The Big Day of Giving is under way in Sacramento and local nonprofits are hoping you'll dig deep in your wallet.

And you have until midnight to do it. This 24-hour online effort will help support nearly 400 local non-profit groups from the libraries to arts groups to food banks.  

The nonprofits themselves are also holding events and you can find out more at the events tab at  

Watch the Clear Channel digital billboards for donation totals throughout the day. As of 2 p.m., the totals had already surpassed $1.5 million.

Learn how you can donate, here.