What places apply online?

I am currently in exam week and I don't have time to go out again and apply at more places so I was wondering which stores you can aply online at. I am looking for a 2nd part time job for the summer. I have applied at cineplex, petsmart, (another local pet store) and wal mart online. I can't figure out how to apply online for Old Navy, Michael's Craft store and Best Buy if you can help me with that that'd be great. Keep in mind I live in canada in a town with not all big name stores such as Macy's or Kole's