There are certain websites such as Amazon, Craiglist, Ebay, Google, Facebook, etc. that have a great marketing position the the mind of web surfers. When you think of an online store, you immediately think of Amazon, but if you want to buy something at a lower price or using Paypal you think of Ebay. When you want to look for something on Internet you go directly to Google, and so forth.
These websites have become very important on our web life, so Tanner created online superheroes battles using this websites. It is a great way to understand the graphic sense of humor or Tanner.