PSAT

Hi there, 

Yes, at Khan Academy we have the Official SAT Practice site that provides practice content for all the skills evaluated in a real SAT along with 8 practice tests you can complete online. 

We don't have a dedicated course for PSAT but you can use the content available on the SAT Practice site to get ready for the PSAT as the subjects in both tests are very similar.

If you'd like to access the course, click here. 

Hope this helps.