Hi Matt. Welcome, and don't lose heart! There is nothing wrong with sending by email (I've seen members do it before), and you can certainly also send the link by just Roll20 message, or even Discord (although not everyone uses/likes Discord as Discord has its own problems too). However, it is the unfortunate reality that there will be many times where someone messages you and then never responds again; or someone actually joins your game on Roll20, but never shows with no notice nor any update; or people that play a few sessions and drop with no notice and no response even when you try to follow up; and then there are also DMs that start games and then one day deletes the game + Roll20 account without notice. Many people when they go online seem to forget there are people on the other end and don't have even the most basic level of courtesy/respect for others. Many will even use the excuse of "not real life" or "real life more important" , forgetting that on the other end is a real person with a real schedule and other committments too. Not to sound pessimistic, but it is the state of things here. Some may even say that many people need to go back to kindergarten and learn the basics of being a person. ;) You just have to keep trying and getting members / interested people. Over time, you will get a feel of the type of people inquiring/joining and better see through which are likely ghosters and which are people that have mutual respect for each other.