Institutional Money Market Funds Association
www.immfa.org

Investment Company Institute
www.ici.org

Association for Financial Professionals
www.afponline.org

Federal Funds Data
http://newyorkfed.org/markets/omo/dmm/fedfundsdata.cfm

Money Rates
www.marketprices.ft.com/markets/currencies/money

iMoneyNet
http://www.imoneynet.com/

Crane Data
http://www.cranedata.us

Bloomberg
http://www.bloomberg.com

Reuters
http://www.reuters.com