Feedback is absolutely crucial. We’ve worked on websites, apps and augmented reality games, and one of the things which have remained consistent between all of them is the absolute need for user feedback. We like to sit down with an array of users, put the software in front of them and ask them to talk us through what they’re experiencing. It’s so easy to get close to the design that you can miss a lot of obvious UX tweaks with just a five-minute chat with someone who’s unfamiliar with the software.
These services can host your content on their servers free of charge, but in exchange for that zero cost, your online destination will have a less-than-elegant domain, such as jeffreylwilson.tumblr.com. That might be fine for a personal blog, but it will look too low-rent for a business that wants people to trust it enough to pay for whatever it's selling.