Which strategy can help encourage as many site visitors as possible to share their email?

Using a single sign-on (SSO) tool, such as Google or Facebook Connect, significantly streamlines the user experience by allowing visitors to register or log in with existing credentials. This reduces friction and the perceived effort of signing up, directly leading to higher email sharing rates (often cited as a 20%-40% increase). Adding an email collection pop-up can be effective, but it can also be intrusive and negatively impact user experience if not implemented carefully, potentially driving visitors away. Adjusting the landing page to collect email only at checkout limits opportunities, as many visitors may not reach that stage. Increasing LTV through discounts is a post-collection strategy focused on retention and engagement, not initial email acquisition.