That is a great question. One option you have for online education is CAPCE approved courses. You can find a variety of online education providers through the CAPCE website, linked here: www.capce.org.
CAPCE is an organization that accredits online education. To identify the type of education, courses are designated as F1, F2, F3 and F5 courses. F1, F2, and F5 are considered instructor-based education and are not limited for continuing education. F3 courses are non-instructor-based education and are limited on how many hours can be used for continuing education.
To find education providers, click on the User Resources at the top of the page and then select Providers from the drop-down menu. As another option, you can also find education providers on the right-hand side of the home page under the Blue Key where they provide a link to F5 Refresher Training.