  We present MESA-Web, a cloud resource with an online interface to the Modules
for Experiments in Stellar Astrophysics (MESA) software instrument. MESA-Web
allows learners to evolve stellar models without the need to download and
install MESA. Since being released in 2015, MESA-Web has delivered over 17,000
calculations to over 2,200 unique learners and currently performs about 11 jobs
per day. MESA-Web can be used as an educational tool for stars in the classroom
or for scientific investigations. We report on new capabilities of MESA-Web
introduced since its 2015 release including learner-supplied nuclear reaction
rates, custom stopping conditions, and an expanded selection of input
parameters. To foster collaboration we have created a Zenodo MESA-Web community
hub where instructors can openly share examples of using MESA-Web in the
classroom. We discuss two examples in the current community hub. The first
example is a lesson module on Red Giant Branch stars that includes a suite of
exercises designed to fit a range of learners and a Jupyter workbook for
additional analysis. The second example is lesson materials for an upper-level
Astronomy majors course in Stars and Radiation that includes an assignment
verifying some of the expected trends that are presented in a popular stellar
physics textbook.
