State and local governments and community organizations are increasingly interested in developing and implementing programs to support healthy marriage and strong families. Through the Building Strong Families (BSF) project, Mathematica Policy Research, Inc., and its partners are developing a model for programs that would serve low-income, unmarried parents who are expecting or have just had a child. The BSF project offers technical assistance to state and local organizations interested in developing services for this unwed parent population. (Author abstract).