As someone who has never played the stock market (or invested in any securities), what services do you use? Do you need to use multiple services in order to trade the different possible securities and markets?<p>According to an analyst friend, some of the online sites geared towards small-fry individuals are a bit shady, in the sense that they bet against their own users; I believe Etrade was in that category.<p>Any recommendations for a &quot;beginner&#x27;s tutorial&quot; on how to get started?