Open Startups - Open startups with their metrics, interviews, and stories
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
Mixergy Startup Stories - Learn from 1000+ interviews including the Product Hunt story
draw.io - Online diagramming application
Starter Story - Learn how others are building successful e-commerce businesses.
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.