I am not sure what you are talking about. I will give you my standard cut-and-paste recommendations on short term investments:
Consider the Vanguard Prime Money Market Fund with a current compound yield of ~4.25% APY.
https://flagship.vanguard.com/VGApp/hnw/FundsSnapshot?FundId=0030&FundIntExt=INT
If you are in a high tax bracket you may prefer their tax exempt money market funds:
https://flagship.vanguard.com/VGApp/hnw/FundsByType
Sometimes other institutions will have a higher teaser rate, but Vanguard tends to have the highest yields I've found over the long run. (Vanguard money markets are not FDIC insured, however.)
Article on teaser rates:
http://www.marketwatch.com/news/story/banks-advertised-rates-dont-always/story.aspx?guid=%7B0A13B6E2-FFB2-4E2B-BD42-E2D1E01C52E5%7D
Bankrate.com provides links to CD's with high interest rates as well as high interest rate banks.
http://www.bankrate.com/
http://www.bankrate.com/brm/rate/deposits_home.asp
ING and HSBC often have rates close to Vanguard, and most of their products are FDIC insured. You can check these at the following links:
http://home.ingdirect.com/open/open.asp
http://www.us.hsbc.com/1/2/3/personal/savings?code=husa
You will pay tax on all these alternatives except the tax exempt money market.
(If you are investing for a long period of time and are willing to accept some volatility, you should consider putting some money into no-load low-expense mutual funds. These are not guaranteed, but over the long run produce much higher returns.)