Question -- What's your longest-running client right now — and in one line, why have they stayed? Answer -- For us it's actually multiple clients — several of them have been with us for over 5 years now. When I look at what these clients have in common, it comes down to four things: 1. They're pretty big. They've been able to withstand the ups and downs of different industries and different markets, and they can consistently invest marketing dollars instead of panic-cutting every time things get slow. That stability matters more than people think. 2. They came in with a mindset that this was a partnership, not just a vendor relationship. Performance goes up and down at different times — it always does. When that happened, they didn't just blame us. They understood we were working the problem together. 3. We consistently got them good results — but more importantly, we consistently worked with them on what tweaks needed to be made on both sides. That's the partnership part again. And we kept showing them how our service continued to make them money, not just activity. 4. Here's the honest one: at any given time, we were probably — and still are probably — not their best overall source in a month. But if you look at us over time, we are very, very consistent. And that's because all of our decisions are made off the data. We look at the data and trace it back to the exact ads and campaigns that are actually driving revenue — not just leads. Because of that, they value the consistency we deliver in both volume and quality more than whoever happens to be hot that month. The pattern I keep coming back to: they stayed because we could prove it, not just because we performed. What about you — what's keeping your longest client around?