Project Euclid is a not-for-profit online publishing service that provides access to journals, monographs, and conference proceedings in the fields of theoretical and applied mathematics and statistics. Its mission is to advance scholarly communication in these fields and it is designed to address the unique needs of low-cost independent and society journals. Through a collaborative partnership arrangement, these publishers join forces and participate in an online presence with advanced functionality, without sacrificing their intellectual or economic independence or commitment to low subscription prices. Full-text searching, reference linking, interoperability through the Open Archives Initiative, and long-term retention of data are all important components of the project. The end result is a vibrant online information community for independent and society journals. This will ensure that mathematics and statistics will continue to benefit from a healthy balance of commercial enterprises, scholarly societies, and independent publishers. Project Euclid was developed and deployed by the Cornell University Library and is jointly managed by Cornell and Duke University Press.