During my research in how to build a repeater, I came across these websites and I hope they can help you too.

• Repeater-builders

• Batlabs

• Pacific Research

Below are links to friend's pages and other sites I frequent.

• N2ROW

• Eham.net

• QRZ.COM

• QTH.COM

• MetroCor - NYC repeater coordination council

• N2RGA.COM