Posterous

Dead simple blogs by email

y-combinatorSummer 2008Email 🇺🇸 San Francisco11 people

posterous.com 𝕏 Twitter

Acquired

Brett Gibson, Sachin Agarwal · 2 co-founders

2026Acquired

Acquired

Team

current

Co-founders

current

Stage

Acquired

Profile coverage4 of 8 · missing Funding, Signals, Customers, Stack / tools · last run 8/11/2026

About

Posterous emerged from Y Combinator in the summer of 2008 as an innovative company focused on making blogging simple - as simple as sending an email - and now has more than 15 million monthly users. With the launch of Posterous Spaces, the company is bringing its trademark simplicity to help people share smarter with intuitive privacy controls to share selectively across multiple platforms.

2 founders

Brett Gibson

Founder

Managing Partner at Initialized Capital

in LinkedIn 𝕏 @brettdg

Sachin Agarwal

Founder/CEO

Cofounder of GrowSF. We're working to fix San Francisco. Previously: cofounder and CEO of Posterous. Before that, engineer at Apple. Posterous was acquired by Twitter, where I was a PM on consumer initiatives for 4 years. I shipped the photos experience (camera with editing/filters, photos in the timeline), updated profiles, completely rebuilt Direct Messages, and more. I later joined Lyft to work on social impact projects.

in LinkedIn 𝕏 @agarwal