There are many resources available for homeschoolers, both in-state and online. We've compiled many of them here for you. There are even more -- just hover on the Resources tab for several more pages including Field Trips and Enrichment Programs. We add to it regularly!
StudyPool has a large list of national homeschool services including online schools.
We are always looking to expand the resources available to the NH home education community. Please let us know if you have more to add! Please email us at firstname.lastname@example.org.