.Net is an excellent platform for startups due to its speed, flexibility, and low cost. The document outlines four steps for launching a startup using .Net: 1) Sign up for Microsoft's BizSpark program to get free software, 2) Design mockups using tools like Balsamiq, 3) Publish an affordable marketing site using services like 99designs, and 4) Build a minimum viable product with ASP.Net MVC and tools like HireFlo before upgrading hosting for customer data. The Denver/Boulder area is a hotspot for tech startups with regular meetups, accelerators like TechStars, and angel investors.