Build backlinks where real humans already go for information. That means industry blogs, news sites, resource directories, and community platforms where your target audience actually hangs out. A single link from a Montreal tech blog with 5,000 monthly visitors beats fifty links from generic submission directories nobody reads. Guest posts work when you target blogs in your vertical that publish quality content and have engaged readers. Look for sites accepting contributors, pitch something useful, include one contextual link. Digital PR—getting mentioned in news outlets, industry publications, or local business features—carries more weight because journalists vet sources. Resource pages and curated lists ("best accounting tools for Canadian startups") offer natural link opportunities if your content genuinely fits. Supplier and partner pages are underused. If you work with other businesses, most will link to you from their partner directory. Professional associations, chambers of commerce, and .edu sites linking to useful resources also count. Community forums and Q&A sites like Reddit or industry-specific boards allow links when you answer questions legitimately, not when you spam. Avoid anywhere that exists solely to sell links—PBNs, link farms, three-way link exchanges. Google's spam updates specifically target these. Also skip blog comment spam, forum signatures on dead boards, and mass directory submissions. These waste time and risk penalties. At Ottawa SEO, we prioritize relevance and traffic over raw domain authority. A DA 35 HVAC forum beats a DA 60 generic business directory if you're an HVAC company. We track referral traffic from backlinks, not just rankings—if a link sends zero visitors in six months, it probably isn't helping SEO either. Focus on 10–20 high-quality placements per quarter rather than 200 throwaway links. Quality beats volume every time, and Google's algorithms increasingly ignore low-value links rather than just discounting them.