Ranking of Internet Rank Sector Est. Monthly Searches (Global) 1 Agriculture / AgriTech ~200–400 million 2 Mining / Natural Resources ~300–500 million 3 Non-Profit / NGO / Charity ~500–800 million 4 Legal Services ~800 million–1.2 billion 5 Architecture / Construction ~1–1.5 billion 6 Insurance ~1.5–2 billion 7 Logistics / Shipping / Supply Chain ~1.5–2.5 billion 8 Automotive (parts, reviews, sales) ~2–3 billion 9 Government / Public Services ~2–3 billion 10 Pets / Animals ~2–3 billion 11 Religion / Spirituality ~2–3 billion 12 Human Resources / Recruitment ~2.5–3.5 billion 13 Telecommunications ~3–4 billion ...