Long-term subscriber value tells you how much a subscriber is worth over time, not just from the first click or action. To track this, you can set up tracking to follow users beyond the first conversion. Use tools that let you assign user IDs or tags so you can match future actions to the same subscriber. It also helps to group subscribers by how they were added and what offers they saw. Then, measure how much money each group brings in over weeks or months. This shows which campaigns are building better quality lists. When you know which subscribers keep converting, you can focus your efforts on getting more of those. Has anyone noticed big changes in value between traffic sources?