Health Niche Offers health information managed by doctors and medical professionals.http://www.health-niche.com/ (Details)

The Niche An informal forum for debate and commentary on stem cell research and its wider implications for ethics, policy, business and medicine.http://blogs.nature.com/reports/theniche/ (Details)

Niche Marketing Offering tips, techniques and insider strategies on running an online business.http://www.andrechaperon.com/ (Details)