SEO content writing combines keyword research with user intent. Start by identifying what your audience searches for using tools like Google Search Console, Ahrefs, or SEMrush. Pick one primary keyword per page and 2-3 related terms. Then write for humans first, search engines second. Structure matters as much as words. Use your primary keyword in the title tag, H1, first paragraph, and at least one H2. But force-fitting keywords everywhere kills readability and rankings. Google's algorithms since 2013 penalize keyword stuffing. We aim for 1-2% keyword density maximum, focusing instead on semantic relevance and answering the actual question. Keep paragraphs under 4 sentences. Use subheadings every 150-250 words to break up text. Include a short opening paragraph that directly answers the query, which helps win featured snippets. Most SEO content should hit 800-2000 words depending on competition and topic depth. Thin content under 300 words rarely ranks unless it's a very specific local or branded query. Internal linking is non-negotiable. Link to 2-4 related pages on your site using descriptive anchor text. This spreads authority and keeps users engaged longer, both ranking factors. External links to authoritative sources also help, contrary to the old myth that they leak link juice. At Ottawa SEO, we write content in batches around topic clusters. If we're targeting "accounting software for small business," we'll also create supporting pages for "best accounting software Canada," "QuickBooks vs Xero," and "accounting software tax deductions." Each piece links to the others, building topical authority. Avoid AI-detection red flags like repetitive phrasing, overly formal tone, or starting every paragraph the same way. Real SEO content has personality and specifics. Instead of "businesses can benefit from," write "most Ottawa contractors we work with save 4-6 hours weekly by." Numbers and concrete examples always outperform vague claims. Update content annually. Search rankings decay when pages get stale, especially in fast-moving industries like tech or finance.