Pollinator Identification - Courtesy of Our Friends
and much more, at the Bumblebee Conservation Trust
UK Pollinator and Plant Identification and lots of resources at Opal Explore Nature
and much more,
at the Buglife
Insect Identification Apps on iTunes
A field guide to the common bumblebees of Britain and Ireland.
Great pocket atlas for students, insect watchers, and an education reference
Insects Pedia is a great collection with most interesting insects.
You can find full specs and great photos.
UK Bumblebee Identification and so much more at the Natural History Museum