Well depends.
If your talking about someone on the website finding ur email and/or zipcode maybe. Those people are call hackers. but if you have a firewall it would help alot more.
Yes
According to Alexa.com, the world's most visited website is Google.com.
One online resource for finding someone who designs website in the UK is through the BBC jobs listing website. One can enter the search criteria and it will generate results on good website designers.
There are many website hit counters available on the internet. The purpose of those counters is to keep track of how many times a website has been viewed. This can help finding out which pages appear more interesting to visitors and which are not visited often.
A trackback link is used to show the websites that someone has been on and what order they visited pages in. They can be used for marketing and website analysis.
No.
the answer is facebook.com
google.com
Yes.
google.co.uk
google.com