Pollinator Identification - Courtesy of Our Friends

Bumblebee Identification

and much more, at the Bumblebee Conservation Trust

UK Pollinator and Plant Identification and lots of resources at Opal Explore Nature

Pollinator Identification

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