Good place to park some cash?

I was thinking of opening a e-trade account. their money market fund is around 5.05%.
Good thing I did not. with e-trade it its state.
So where is a good place to park some cash?
I was looking at:
VANGUARD MONEY MARKET RESERVES (VMMXX)

Any other suggestions?

Ssga Yield Plus, an ultrashort bond fund (similar to money market funds except it holds bonds with slightly longer maturity and more risk) current 30-day yield is 5.50%
Note that this fund lost 11% YTD because of the subprime mess

You can also open an account at treasurydirect.net and buy T-bills

My first suggestion is my bank account but ... I don't want strangers to have access to my account :) lol

I'd put money in mutual fund, ETF, some in IRA, and stocks in healthcare and technology sector.

You can put them in money market too or bank, the thing is, rate cut is going to happen again, and again, until economy bounce back up.. and when that happens, your bank interest rate won't be as attractive as it used to be.

Amtrust is offering 5.11% on their savings account. The best I've found.

DO NOT KNOW HOW OLD YOU ARE BUT I HAVE INVESTED IN TWO STOCKS THAT PAY DIVIDENDS -
ONE, MONTHLY AND THE OTHER QUARTERLY - PRICE IS VERY STABLE ON BOTH - I CAN ALMOST GO TO SLEEP AND NOT WORRY ABOUT EITHER -
THEY ARE NAT AND PWI -

Schwabs giving over 4% .
Just remember... money markets aren't insured. What about t-bills and notes.

e trade is fine...
you are SIPC protected (this is the brokerage version of a banks FDIC) ... covers you up to $500,000 of assets.... and i imagine they carry a secondary line of insurance for accounts above that.
if e-trade goes bankrupt then someone else will step in as broker to manage the accounts.

i'm not pitching e-trade.. just letting you know that if you like their product/system dont get scared off due to competitors' tactics.

vmmxx is good... pvcxx is ok....

cd's may yield the same but at least if yields drop your cd will be locked till maturity....

cheers