The third most surrendered pet to humane shelters: the fluffy bunny.
We all know the importance of spaying and neutering, yet not all of us can afford to have it done. We probably also all know other people who can't afford it. These two links following are to organizations that help find low cost clinics to get the job done. Hopefully you or someone you know can find help with this. This is one instance when one person can make an enormous difference!
Spay Usa is a nationwide network and referral service for affordable spay/neuter services.
Lovethatcat.com is a website offering a similar service. They list organizations by state.