Hi Ben,
It sounds like you're off to a great start. I would also recommend writing a few short articles with the resource box linking back to your domains (with squeeze pages to capture your visitor's information).
Afterwards, "bookmark" the articles at several social bookmarking sites and then "ping" both your sites and the social bookmarking urls to send the spiders to them.
The more ways you can create links back to your sites the better.
Once again, it looks like you're setting things up well. Best of luck to you.
All the Best,
Tim