These are the people most likely to give to the fund-raising drive and to volunteer their time. See if active library users and volunteers can be contacted for fund-raising and campaign work. Libraries' policy on providing this information vary, but it's a great place to find support. As with Friends members, these are people very likely to give time and money. Limit campaign expenses by actively looking for in-kind donations.
Businesses can be very supportive of library initiatives.
Oakland's campaign received over 25,000 sheets of paper and almost as many envelopes for our fund-raising mailing. Friends groups often have valuable business and community contacts for fundraising. Booksellers are natural allies. The media is also a natural ally. Make early contacts at newspapers, TV, and radio and enlist their support.