Probably cookies, I did another quick test and created a new profile. The front page was unpopulated. I went to a technology connections video, and the refreshed the front page. It was populated, cleared stored information, (history, cookies, cache, etc…) and when I refreshed the homepage it was blank again.

The fairly default browser I used to take the screenshot is to watch some free with ads movies on youtube, most recently was waterworld, fun to watch, makes no sense.