I have a money market acct. are there any other banking investment that I can do to get the most for the $?

Money market accounts vary greatly. If you are not making at least 5% in the account, look at CDs or other guaranteed accounts to ensure you get the best return.

A money market account is only appropriate for saving toward a disaster or very short term need. If you are looking to grow your savings, you need at least some of the money in stock market indexed funds.

Developing an individual plan requires a lot of background - how old you are, what your saving goals are, what you already have, when you plan to retire. You can only hope for some basic ideas here based on your question.

Incidentally, earlier advise about individual stock purchases is bad; you will not have the expertise to make a profit. Stick with indexed funds that significantly spread the risk, and keep management fees to a minimum.

I have a money market account at Vanguard.com that is earning 5.12%.
They give you free checks too.The only drawback is they have an account minimum of $3000.

Not really, banks typically pay poorly as they are taking a better part of any earnings earned. If you 18 you should consider opening an on line brokerage account on such places like Scottrade and doing a ton of research and making an investment. Its hard learning at first but be persistent and ask questions until you get it. You can stick with low risk securities if you want, like government backed bonds notes and bills although they don't pay as well as some other investment options.

It depends how risky you want to be. You can put it in stocks, mutual funds, etc. For standard banking purposes, money markets or CDs are the best way to go - other wise you'll need to invest.