It can be tricky to find a balance between risk and profit when you want to make money. Some investments are always very dangerous - for example HYIP (high yield investment programs). These programs often run a "Ponzi scheme" which means that it works as long as there are new people joining in and investing. People are promised very high profits up to dozens of percent per month.
The reality is that the people who registered earlier receive profits from the people who registered later. There is no investing going on, it's only moving money from one person to another. The HYIP works if there are new people. When there are no new people, the whole program falls apart like a house of cards.
Other systems may be safe but the earnings are very low, this includes things like PTC (paid to click) or PTV (paid to view or read advertisement emails). Other offers that appear to be a way to make money are only scames. There are programs that you can download that promise to make money if you leave them running on your computer. The secret is that they do not generate any money - but you allow the program to do anything on your computer and they can be viruses or spyware.
Of course, you'll only earn very little money with these methods. Fortunately there are methods that have been proven to work and which anyone can use because they are available free of charge. You can read the method as well as experience the advice of others who are already making money this way. When you succeed with this method as well, you can then post your experience and help the others.