Abstract: Methods, software and devices for fundraising events over the Internet are disclosed. Donations are collected on behalf of a donee using collaborative puzzles to be solved by donors. For each fundraiser, a a collaborative puzzle is defined by defining regions in a fundraising image and associating with each region a requested donation amount. Donors are notified of the puzzle based on electronic contact information received from each fundraiser. A representation of the collaborative puzzle is presented donors. The representation includes a depiction of the fundraising image, in which some of the regions are obscured, and others are unobscured. The Obscured regions are those for which an associated requested donation amount has not yet been received, while unobscured regions are those for which an associated requested donation amount has been received. Donation amounts are received from donors and then provided to the donee.