1. Check the the date and it would tell you when you/they posted it.

2. You could search define: it would tell you what the words mean.

3. When you buy something on amazon would see your credit card number and with buying stuff on app store they can see your credit card.

4. You can hit safe on your computer and it would be a safe web sit.

5. you can hit web sit and I would show you all of the web sit and they would all be there.