Thank you. Let us take US market as an example. Can you please help me understand what (successful) solutions are available in the market for 1) SEO 2) Affilia

Thank you. Let us take US market as an example. Can you please help me understand what (successful) solutions are available in the market for 1) SEO 2) Affiliate partnerships 3) PR 4) Content Marketing 5) PPC 6) referrals (how is it different from Affiliate partnership)