Another interesting link comes from a British invertebrate preservation site- lots of interesting info about how they protect different types of invertebrate habitats. Obviously, our bugs and our their habitats in the southeastern US are different, but I thought it was a very comprehensive treatment of how to save species by conserving habitat.
Here's a link to an interesting article about winter ecology in insect species. Fascinating! It's amazing what our insect friends have to go through to make it from year to year.