Let’s be real. Marketing can get expensive. With such a strong emphasis on digital marketing, it can seem like the only way to be successful is through buying ads or paying for SEO. While both of those are very popular and useful ways to market a business, there are also many marketing strategies that come at a low cost, if not for free. These four low cost marketing strategies create organic traffic and exposure for your business, and they all place an emphasis on the most important factor of marketing: the people you’re targeting.

1. Network

Networking is one of the most effective marketing strategies that everyone has access to, and there are plenty of ways to do it. First and foremost, LinkedIn is a platform entirely devoted to networking. As a rule of thumb, you should be adding everyone you shake hands with or speak with, including customers, similar business, and more. In building a personal brand through LinkedIn, you can promote your business brand. To make networking even easier, you can make a group page for your business, or join a local business group and participate with the existing members and audience to boost the exposure of your business.

Related: The 8 Fundamentals for a Successful Inbound-Marketing Strategy

LinkedIn is far from being the only way to network. Networking is a mindset and an approach that prioritizes people rather than positions and businesses. In putting people first, you can determine who matters most that you need to get to know and what you can do for them. Then you can market your business to a broader audience in a less obvious, more effective manner. The best part about networking is that you can essentially do this anywhere, at any time, with anyone. Is there a local business association that holds meetings? Join it. A chapter of a marketing association in your city? Join that, too. Start utilizing any and every opportunity that brings you in contact with new people.

2.Build a partnership.

Ever heard the saying “I’ll scratch your back if you scratch mine”? That’s exactly how a partnership works. Let’s say you own a car dealership and there’s an auto detailer and repair shop down the road. If you partner with the auto shop, you can refer people there for maintenance and keep their business cards or flyers in your dealership. In return, the auto detailer can refer people to your dealership when they need to buy, sell, or trade their vehicle and they can also keep business cards or flyers in their shop. Maybe there’s even a discount if they mention that the partnering business referred them.

Related: 6 Essential SEO Strategies to Incorporate in 2016

Building a partnership can market your business to the customer base of another business, and vice versa. This works especially well for local businesses, as it fosters a sense of unity and support within the community. People are exceptionally receptive to recommendations that come from businesses they already trust and have had positive experiences with, and you can use that to your advantage through a partnership. It’s cost-effective, marketing-savvy, and will build your reputation.

3.Ask for reviews.

The only things people pay attention to more than what it says about your company on Google are the reviews that previous customers have left you. I once found a rental property I was interested in, and upon searching for reviews of the real estate agency I found an entire Facebook page dedicated to very passionately written bad reviews about the company (and that was in addition to a low Yelp score). I was horrified after reading all the negative experiences other customers had with the agency, and have since warned many friends to avoid renting or buying any properties from them solely based on those reviews.

What your customers have to say about you is the clearest indication of the kind of experiences future customers will have with you. By asking customers who have had positive experiences to write a quick review on Facebook or Yelp, you can accumulate endorsements and vouchers. Plus, if someone is willing to take the time to write a review, it’s likely that they’ll recommend your business to their friends and family for future needs. All of this comes at little to no cost and lets your customers to do the marketing for you.

Related: The 3 Steps to Building a Winning Brand Strategy

According to Carlos Fearn, a Marketing Consultant at Rankology, “Consumers trust online reviews nearly as much as if it were a recommendation from a friend. It is imperative in today’s online society that a business encourages their customers to leave reviews on the major social networks and portals to show their satisfaction with your company.”

4. Blog.

Helping people before they actually need anything from you is a marketing tactic that A) might not even be a “real” marketing tactic and B) has great returns. An easy way to do this is by adding a blogging component to your company’s website where you can offer useful tips and insights about things related to your business. The only thing it will cost you is time, and by blogging about the topics you’re already knowledgeable about, you can market a friendly credibility that’s in the interest of the customer.

For example, if you’re a bakery, share some easy recipes around the holidays, or offer tips on baking for people with food allergies. By providing a real utility to the kind of customers who have use for the information you’re providing, you create a relationship that establishes your business as a helpful authority. People tend to value helpful over pushy and if someone has used tips or recipes from your bakery’s website, you’ll probably be their first thought when they need a sweet treat on their lunch break.