Flock vs. Explorer

Three features about Flock that would be useful to me would be:

1. I can save the websites I go to and just put them in the sidebar to click on at any time.

2. I can talk to friends or share photos or videos with them at any time.

3. Instead of just having one home page when I open it, I can put all my most frequently visited pages on my homepage and just click on the one I want to visit.