How can online trading platforms be trustworthly?
In most countries trading platforms are legally required to be overseen by a regulator, in the US this is the SEC (Securities and Exchanges Commission). This regulatory oversight is required in order to operate (i.e. have clients) in that country and the company will lose the right to operate in that country if they do not comply with the regulations. If you believe that you have genuine cause to complain that a trading platform that you are using within your jurisdiction is behaving unfairly towards you you can report this to the regulator and they will investigate so long as you can provide them with some concrete evidence. Note that in many jurisdictions gambling websites are also regulated (they are in the UK for example) and so arguments about their fairness are specious. A big problem with a lot of these complaints is that people who lose money are very vocal about blaming everyone else, people who make money are very vocal about their own amazing skills... think about that! Most investors vote with their wallets. I expect ZERO glitches from a trading platform. If someone was actually causing trades to fail maliciously, their reputation would immediately suffer and their business would dry up over night.  You can't just play dumb and not respond to a button click. I can watch and replay the traffic I'm sending out to their server and see if they are responding to verify this. If their system goes down and has no redundancy, that is their fault and opens them to lawsuits. No trading platform could withstand scrutiny from its users if it was dishonest in the scenario you imagine.
A great way to learn is by watching then doing. I run a very successful technical analysis blog, and the first thing I like to tell my readers is to find a trader online who you can connect with, then watch them trade. I particularly like Adam Hewison, Marketclub.com - This is a great website, and they offer a great deal of eduction for free, in video format. They also offer further video based education through their ino.tv partner which is paid. Here is a link that has their free daily technical analysis based stock market update in video format. Marketclub Daily Stock Market Update Corey Rosenblum, blog.afraidtotrade.com - Corey is a Chartered Market Technician, and runs a fantastic technical analysis blog the focuses on market internals and short term trades. John Lansing, Trending123.com - John is highly successful trader who uses a reliable set of indicators and patterns, and has the most amazing knack for knowing which direction the markets are headed. Many of his members are large account day traders, and you can learn tons from them as well. They have a live daily chat room that is VERY busy. The other option is to get a mentor. Just about any successful trader will be willing to teach someone who is really interested, motivated, and has the time to learn. The next thing to do once you have chosen a route of education is to start virtual trading. There are many platforms available for this, just do some research on Google. You need to develop a trading plan and methodology for dealing with the emotions of trading. While there is no replacement for making real trades, getting some up front practice can help reduce your mistakes, teach you a better traders mindset, and help you with the discipline necessary to be a successful trader. When you are placing an order with an online broker you should already know what exchange or exchanges that stock trades on. For example if you look up under Yahoo Finance: Notice how News Corp is traded both on the ASX and the Nasdaq. The difference is the shares traded on the ASX have the extension .AX, that is how you know the difference between them. When you are putting orders in with your online broker you will need to select the exchange you wish your order to go to (if your broker allows trading on multiple exchanges). So you should always know which exchange your order goes to. You can do this via many online FOREX brokers. All you need to do is set up and fund an account with them and then trade via their online platform. Some examples of brokers that do this are: "The first consideration for the banking part of your portfolio is safety. In the United States that is FDIC protection, or the equivalent for a Credit Union. The second consideration is does it have the level of service you need. For this I mean the location of branches, ATMs, or its online services meet your needs for speed, accuracy, and ability to access or move the money as you need. The rest are then balanced on the extras. For your situation those extras include the ability to make free trades. For other it might be a discount on their mortgage. For others it is free checking.  In your current situation if the first two things are met, and you are using those extra benefits then don't change. For me the free trades wouldn't be a benefit, so any major degradation in the safety and service would cause me to leave. Keep in mind that free services exist to entice you to make a deposit: which they can then make money by lending it out; or they offer a free service to entice you to use a service they can charge you to use. All Free services come with a cost. I earned a completely paltry $3.33 YTD over the last 9 months on my   savings at my bank presumably in exchange for these ""free"" trades. Without knowing how much you had deposited in your savings account there is no way to know how much you could have made at the bank across the street. But with the low rates of the last decade there is not big money to be made off the emergency savings of a typical american family." I was recently at the National Physical Laboratory in the UK and discussing exactly this.  By January 2018 financial institutes will be legally required to time stamp all transactions (including high frequency trades) with a UTC time code.  Today this is almost exclusively done using GPS satellite time and as the OP states - these can be spoofed but also are vulnerable to certain weather conditions.  One of the many innovations of NPL in their recent diversification includes sending ‘time’ into the city by  optical fibre which is ‘gold standard and cannot be tampered with’.  Very interesting topic ( I thought )! "My broker (thinkorswim) offers this from the platform's trade tab.  I believe this feature isn't crippled in the PaperMoney version which is effectively a ""free online service.""" http://www.moneysupermarket.com/shares/CompareSharesForm.asp lists many. I found the Interactive Investor website to be excruciatingly bad. I switched to TD Waterhouse and found the website good but the telephone service a bit abrupt. I often use the data presented on SelfTrade but don't have an account there. There are quite a few online brokers ... All of these have different pricing structure and the right one would depend on the amount of & type of trading you are doing, for example Reliance Money offer 1 paise brokrage, but with a higer anual fees, so it makes sense if you are doing delivery trades and not IPO or Day trades ... Others changes less of anual fees but more of brokrage.