Buy the AdWords, write blog posts, and tweet to reach their old members. Target your landing pages to ex-drop.io customers. Offer an import tool. Show how the

Buy the AdWords, write blog posts, and tweet to reach their old members. Target your landing pages to ex-drop.io customers. Offer an import tool. Show how their old features map to yours (e.g., "What drop.io calls a drop, we call a workspace"). Emphasize that you're committed to the service long-term and won't shut down when the CEO gets a sweet job offer.