The Great Give 2015, the sixth online giving campaign to raise funds for local nonprofits serving the Valley and Greater New Haven regions, will take place May 5 and 6. During a 36-hour period, donations made to over 400 participating nonprofits through the Community Foundation for Greater New Haven program will make the organizations eligible to win thousands of dollars in matching funds and prizes. Donations will be matched on a pro-rated basis with additional funds by the Valley Community Foundation, Community Foundation for Greater New Haven, and other community sponsors. Grand prizes will be awarded to the nonprofits that attract the most number of individual donors ($15,000), get the greatest number of new donors ($10,000), and raise the most money ($5,000). More than $3 million distributed The Great Give will begin at 8 a.m. on Tuesday, May 5. For a list of participating nonprofits and other details, go to www.thegreatgive.org . Since its inception, the Great Give has distributed about $3 million to local nonprofit organizations. The Community Foundation for Greater New Haven oversees hundreds of individually named funds and serves 20 towns, including Shelton. It has an endowment of more than $460 million, distributing over $22 million in 2014. Learn more at www.cfgnh.org.