A Boston Public Library card is available to any resident of Massachusetts. A BPL card will give you access to eBooks and streaming video collections, such as Kanopy. You can apply here.
If you have a card from your local C/WMARS library, you can access the eBook, audiobook, and eVideo collections from Overdrive.
This page lists eBooks from the library's EBSCO eBook collection. These books cover many subjects:
Additional eBook options are listed below on the left.