Blogs help SEO because they solve the fundamental ranking equation: more quality indexed pages means more opportunities to appear in search results. Every published post targets keywords your homepage and service pages can't reasonably cover, especially informational and long-tail queries where buyers start their research. The mechanism is straightforward. A roofing company homepage might rank for "Ottawa roofer" but struggle with "how long does asphalt shingle last" or "metal roof vs shingle cost." Blog posts capture that search volume, bring users into your funnel early, and establish topical authority Google rewards when evaluating your commercial pages. Backlinks matter more than most businesses realize. Journalists, researchers, and other sites link to helpful blog content far more readily than to service pages. A single well-researched post can earn 5–15 referring domains over 18 months, and that link equity flows through your internal link structure to boost rankings across your entire site. Freshness signals count, particularly in competitive niches. Sites publishing weekly tend to get crawled more frequently than static five-page brochure sites, which means faster indexing of updates and new pages. Google's algorithm doesn't directly reward "blog activity," but the downstream effects—more crawls, more internal links, more keyword coverage—compound over time. At Ottawa SEO, we see the clearest wins when clients commit to at least two posts monthly for six months minimum, each 800+ words, genuinely answering questions their customers ask. Thin posts rehashing common knowledge rarely move the needle. The ROI shows up in organic traffic growth—typically 20–40% year-over-year for portfolios that treat blogging as keyword expansion, not just "content for content's sake." The tradeoff is resource cost. Quality posts require research, writing, editing, and promotion. Businesses that can't sustain consistency often see better returns investing that budget in technical SEO, link acquisition, or conversion optimization instead. Blogging helps SEO when it's done with strategic intent, not as a checkbox exercise.