BrainAround - Q&A site for college textbook problems & solutions
Teech - 24/7 Unlimited help from the world's best students
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
Spires - Connect w/ Oxford or Cambridge University tutors online
ofCourseBooks - Let your students write, save and share their course notes.
Gamayun - An AI tool that researches and summarizes any topic for you