Ask HN: Any guides for launching a product signup page?

One of my side projects has generated some interest, and I want to build a landing page/site to start off my sales pipeline. Initially I'm thinking just an email signup, then I can send out more information and work with customers individually to bring them onboard. Its targeted towards enterprise, so its actually feasible to have more of a manual onboarding process.

My question is this: what resources do you use when creating such a landing page? And what crucial content do I need to put on it (clear descriptive text and the email signup being obvious)? Tutorials, example sites, and the like are all good.

We see a lot of great launches here on HN and I've picked up some tips from them, but haven't seen as much in terms of references about this.