Craig's List of helpful links
Bee Anatomy
A Beginner's Filed Guide to Identifying Bees
An annotated checklist of the bees (Hymenoptera: Anthophila) of San Diego County, California
Exotic Bee ID
Bees! Diversity, Evolution, Conservation
Identification Atlas of the Vespidae (Hymenoptera, Aculeata) of the northeastern Nearctic region
Field/Photo ID for Flies
Exporting Observations from iNat
