Here are some links to my favorite sites: (updated 6/28/19)

Sign up to be a member of the Facebook National AP Biology Teachers, they have a Google drive full of resources

On the Facebook National AP Biology Teachers site you can sign up for a mentor

OpenStax (free AP Biology book)

Biointeractive from HHMI (lots of activities and dry labs) direct link to Classroom Resources

Serendip Studios https://serendipstudio.org/sci_edu/waldron/ (lots of activities and dry labs) You'll need to email Ingrid Waldron to get access to the answer keys

HASPI Medical Biology (you have to ask for a password) lots of excellent dry and wet labs (click on this link to get the password)

Data Nuggets (data to practice and develop quantitative abilities using graphing)

Bozeman AP Biology videos ( I used to assign reading or watching videos)

Link to Interactive Models and Simulations (note it has not been updated since 2015) there are quite a few people on the Facebook National AP Biology Teachers site that have done many more

Link to Podcasts (again not updated some links are broken)