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Hey all, I'm less interested in one-time sales spikes and more focused on growing a long-term reader base. Have any of you found online book promotion services that helped build consistent engagement over time? I’m thinking about services that grow your email list, increase reviews, or drive traffic to your author site—not just temporary boosts. I know BookFunnel and StoryOrigin offer some of these tools, but I’m curious what else is out there that you’ve tried. Any suggestions for services that help with long-term author growth, not just short-term promotions? I’d really appreciate your insights!