Makerlog - Makerlog is the dead-simple task log that helps you stay productive and ship faster.
Really Good Emails - A large collection of good product email design.
WIP.co - Work in progress. We are a community of makers who help each other ship product.
Good Sales Emails - Best sales emails from great companies
Indie Hackers - Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
Great Email Copy - A dose of emails from around the web.