The exchange may offer privileged services like high-frequency trading to larger clients like mutual funds and asset management companies (AMC), and earn money accordingly. There are provisions for regulatory fee and registration fee for different profiles of market participants, like the market maker and broker, which form other sources of income for the stock exchanges.
There are two types of brokers: full-service and discount. Full-service brokers tailor recommendations and charge higher fees, service charges, and commissions. Most investors are willing to pay these higher fees because of the research and resources these companies provide. With a discount broker, the majority of research falls on the investor; they just provide a platform to perform trades and customer support when needed. Newer investors can benefit from the resources provided by full-service brokers, while frequent traders and experienced investors who perform their own research may lean towards platforms with no commission fee.
Insider trading: this is formally forbidden and punished in regular markets by stock exchanges organisations, but since crypto markets are unregulated, there is no way to apply any control here. Insider trading is when you have insider information about a project before anyone else or before the news hits the public, and you can thus acquire or sell a lot of cryptocurrency before the news break, allowing you to make huge profits, or to minimalise your losses.

You’ll come across an overwhelming amount of information as you screen potential business partners. But it’s easier to home in on the right stuff when wearing a “business buyer” hat. You want to know how this company operates, its place in the overall industry, its competitors, its long-term prospects and whether it brings something new to the portfolio of businesses you already own.