As far as platforms go, I've used AWeber for several different affiliate marketing campaigns, though I can't speak directly to its efficacy with insurance leads. That in mind, regardless of which platform or tactics you use, just bear in mind the conversion funnel you're bringing your leads down. Make sure you follow a strategy that isn't "overselling". That is, have a lot of great content you can use to build authority and reputability, and sprinkle in offers and conversion opportunities as you go. Also, make sure no matter what you send, there is a good opportunity to convert within your content.