Here are 20 famous bloggers who have made a significant impact in their respective niches. Please note that popularity can change over time, and there may be new bloggers who have risen to fame since then:

Huffington Post (Arianna Huffington): Known for her political commentary and news aggregation.

The Blonde Salad (Chiara Ferragni): A fashion and lifestyle blogger turned businesswoman and influencer.

TechCrunch (Michael Arrington): Focuses on technology news and startups.

Zen Habits (Leo Babauta): A minimalist lifestyle blogger focusing on simplicity and mindfulness.

Smitten Kitchen (Deb Perelman): A popular food blogger with a focus on approachable yet impressive recipes.

The Pioneer Woman (Ree Drummond): A cooking and lifestyle blogger with a focus on life in the country.

The Sartorialist (Scott Schuman): Renowned for his street photography capturing fashion trends worldwide.

Copyblogger (Brian Clark): Offers advice on content marketing, blogging, and copywriting.

Gizmodo (Peter Rojas): Covers the latest gadgets, technology news, and science developments.

Perez Hilton (Mario Lavandeira): Known for celebrity gossip and entertainment news.

Mashable (Pete Cashmore): Covers technology, digital culture, and entertainment.

Cupcakes and Cashmere (Emily Schuman): A lifestyle blogger covering fashion, beauty, food, and interior design.

Tim Ferriss: An author and blogger known for self-improvement and productivity advice.

A Beautiful Mess (Elsie Larson and Emma Chapman): Offers DIY projects, home decor, and crafts.

The Kitchn (Sara Kate Gillingham and Faith Durand): Focuses on food, cooking tips, and kitchen inspiration.

Seth Godin: An influential marketing and business author and blogger.

Brain Pickings (Maria Popova): Explores literature, art, philosophy, and science.

Wait But Why (Tim Urban): Known for in-depth, humorous, and thought-provoking articles.

Neil Patel: A digital marketing expert sharing insights on SEO, content marketing, and entrepreneurship.

Oh Joy! (Joy Cho): A lifestyle and design blogger offering creative inspiration.

Please verify their current status and influence as the blogging landscape can change quickly. Additionally, there are many other successful bloggers in various niches who may not be included in this list.