A blog helps SEO substantially if you're publishing strategic content that answers real search queries. We typically see clients gain 30–150% more organic traffic within 6–12 months of running a consistent blog, though results vary wildly based on industry competition and execution quality. The core SEO benefits break down into four mechanisms. First, blogs let you target long-tail keywords your main pages can't naturally cover—think "how to winterize commercial HVAC systems in Ottawa" versus just a generic HVAC services page. Second, regular publishing signals to Google that your site is active and relevant, which helps with crawl frequency and freshness signals. Third, comprehensive blog content builds topical authority in your niche, which Google's algorithm rewards with better rankings across your entire domain. Fourth, genuinely useful posts attract natural backlinks from other sites, which remains one of the strongest ranking factors. The "how much" question really hinges on three variables: frequency, quality, and keyword strategy. Publishing twice a month with mediocre 400-word posts won't move the needle. Publishing weekly with well-researched 1,200–2,000 word posts targeting specific search queries can transform your traffic within quarters, not years. At Ottawa SEO, we've seen B2B service companies go from page three to page one for competitive local terms purely through strategic blog content that demonstrated expertise Google couldn't ignore. What kills most blog SEO efforts is writing for humans without considering search intent, or writing for search engines without providing genuine value. You need both. The other common mistake is inconsistency—publishing ten posts in January then nothing until June destroys momentum. Google rewards sites that publish regularly, even if that's just twice monthly. One concrete benchmark: if your blog isn't generating at least 20–30% of your organic traffic within a year, either your keyword targeting is off or your content isn't matching what searchers actually want. Blogs aren't magic, but they're the most scalable SEO tool for companies that can't outspend competitors on ads or traditional link building.