There are dozens of markets that employ content writers. This is not a definitive list but here are seven of the most popular:
Marketing
- Social media (Facebook, Instagram, Linkedin, etc.) 
- Digital advertising (PPC, display, retargeting, native) 
- B2B sales (lead gen, outreach, closing techniques) 
- Content marketing (Blogs, YouTube, podcasts) 
- Email marketing (conversion, deliverability, automation) 
Personal finance
- Mortgages 
- Credit cards 
- Taxes 
- Insurance 
- Banking 
- Budgeting 
Health conditions
- Diabetes 
- Back pain 
- Dementia 
- High blood pressure 
- Crohn’s disease 
- Irritable bowel syndrome 
- Asthma 
Aging
- Products and services targeted at boomers 
- Specialty travel 
- Brain health supplements 
- Cosmetics 
- Part-time income 
Individual professions
- Trade journals 
- Blogs 
- Podcasts 
- Industry newsletters 
Ghost writing
- Books (for print) 
- Ebooks 
- Blog posts 
- Speeches 
B2B Products (Especially Software)
- Blog posts 
- White papers 
