Starting a business with $500 may seem challenging, but it is definitely possible. Here are a few ideas that can be initiated with a limited budget:

1. Freelancing: If you have a skill such as writing, graphic design, programming, or social media management, you can offer your services as a freelancer. Platforms like Upwork, Fiverr, or Freelancer allow you to find clients and start earning money without any significant upfront investment.

2. Dropshipping: With dropshipping, you can sell products online without needing to hold inventory. You can set up an online store using platforms like Shopify and source products from suppliers who handle the shipping. Your investment would primarily be in creating a website and marketing your store.

3. Handmade Crafts: If you have artistic skills, you can create handmade crafts or products and sell them online or in local markets. Platforms like Etsy or local craft fairs can help you reach potential customers. Your investment would mainly go into purchasing raw materials and marketing your products.

4. Cleaning Services: Starting a cleaning service can be relatively inexpensive. You can offer residential or commercial cleaning services and begin by targeting your local community. Invest in basic cleaning supplies and advertise your services through flyers, social media, or local newspapers.

5. Tutoring: If you have expertise in a particular subject, you can offer tutoring services. Advertise your services in local schools, community centers, or online platforms like Wyzant or Tutor.com. Your investment would primarily involve creating study materials and marketing your services.

Remember, starting a business requires dedication, hard work, and perseverance. It's important to research your chosen industry, study your target market, and develop a solid business plan. While $500 may not be enough for significant marketing campaigns or large-scale ventures, it can serve as a starting point for many small businesses.