Tnronin:
I live near Sacramento, CA and my local library has Link+ service for borrowing regular (paper) books from a vast selection of other libraries but not digitally. So, my workaround is to get a library card from the NewYork Public Library
http://www.nypl.org(I read that on another forum here) and for $100/year I get more access to tons of ebooks. Their collection has over 30,000 digital items for checkout! Good luck!