Affiliate marketing is legal. You can promote products for businesses and earn commissions. Many companies use affiliate programs to boost sales. You need to follow the rules of each affiliate program. You should disclose your affiliate links to your audience. Honesty is important in affiliate marketing. You must avoid false claims about products. You can succeed if you follow ethical practices. Many countries allow affiliate marketing as a business model. You should check local laws to ensure compliance. You need to focus on providing value to your audience. Legal affiliate marketing can be a great way to earn income.