Capture who clicked a link from Website A to Website B?
<p>Assume I have a website called Website A and it has some links on it to other websites.  One of these links could be a link to Website B.  Is there a way, using some existing solution, open source, or something you have to pay for where you can track who, what, where, etc clicked the link to go from Website A to Website B?</p>

<p>Website B could be Stackoverflow and my website is www.websiteA.com, so on my website, I have a link to www.stackoverflow.com.  If a user clicks on www.stackoverflow.com from my page, I want to capture information, such as name, phone, etc (not sure if I can do this unless the user is actually logged into my website).  In this case, this is a public page which anyone from anywhere can access.  If I can't do it from my website, is there a way I can tell stackoverflow that this particular person clicked on my link to get to your website and I need their information.</p>
