Screening to keep out tiny Monodontomerus wasp parasites
http://www.pollinatorparadise.com

Suggested Plants for Native Bees

Xerces Society:
http://www.xerces.org
This group has helped me identify bugs. After taking a picture with my digital camera of an unknown critter, I email it to them & they provide me with pertinent info for identification.

Here are some more links.