Organizers expect to raise significant funds for local nonprofit organizations during the third annual Give BIG San Bernardino County campaign.

Give BIG is a 24-hour fundraising web-a-thon — lasting from midnight to midnight on Tuesday — and will benefit nonprofit organizations throughout San Bernardino County.

Give BIG is annually held on Giving Tuesday — an international day of giving fueled by social media. It is designed to raise awareness of the county’s fundraising needs and to help nonprofits become self-sustaining by expanding their donor bases.

Proceeds raised through Give BIG will benefit participating nonprofit organizations and the people they serve. A minimum donation of $10 is requested.

More than 100 nonprofits have signed up. Participating nonprofits will be listed on the campaign’s website at www.givebigsbcounty.org.

Participating nonprofit organizations will receive training in the use of social media, marketing, donor cultivation and follow-up.

Third District Supervisor James Ramos said the county is committed to improving the quality of life for residents, the long-term sustainability in the nonprofit sector and to building capacity in the region.

Ramos said donations will provide critical funding for community services and help bridge the gap between government programs and local needs.

“Like it or not, San Bernardino County’s charities receive the lowest level of donation support of any area of California,” local economist John Husing said in a statement. “Including major foundations, only $3 per person is the average amount of money flowing to them. California’s average is $119. This strangles the ability of our charities to provide the kind of services our area must have if we are to raise our quality of life.”