Help .... Opening an IRA through USAA?

As the title says, I'm considering opening an IRA through USAA. The thing is that I'm not to hip to all the lingo that I'm seeing, i.e. Roth, Traditional, Mutual Funds, Stocks, Bonds, Annuities, etc.... Is there a website where I can go to become better informed on these things and on IRAs in general before I dive in? Thanks?