Startup Notes - Most actionable advice from each Startup School speaker
Proxyman.io - Proxyman is a high-performance macOS app, which enables developers to view HTTP/HTTPS requests from apps and domains.
Startup Fucking Advice - A humor-based website that gives random startup advice.
httpbin(1) - HTTP request and response service
First Search - The world's best startup advice, curated and searchable.
Endpoints - View and respond to requests on an HTTP endpoint