I've been playing with the Facebook and Pinterest buttons and I have a few questions I'm hoping someone can answer.

1. What is the difference between the Facebook Like and Follow buttons?

2. Is there a way to use the Pinterest Pin-It button in an iframe instead of the anchor+script combo?

3. Can the Pinterest button be made to always display the number of pins, even if they're zero?

4. Is there a way to prevent the Facebook Like button from displaying the number of likes?

5. Does anyone else have a problem with the Facebook Like button sometimes disappearing after being clicked? It reappears upon refresh.

Please let me know if you have any idea on any of these.