ALEKS - ALEKS is a web-based artificially intelligent assessment and learning system that uses adaptive questioning to accurately determine exactly student knows.

Patreon - Patreon enables fans to give ongoing support to their favorite creators.

ExamView Assessment Suite - ExamView lets you can create assignments, launch classroom assessment questions and collect real-time responses to evaluate student performance.

Drip by Kickstarter - A new way to back creators. A Patreon competitor.

Canvas by Instructure - The Canvas LMS is the world's fastest growing learning management system. Check out favorite features and schedule a live demo!

Open Collective - Recurring funding for groups.