8. Cookies
Use of Cookies on our Site
A cookie is a text-only string of information that a website transfers to the cookie file of the browser on your computer's hard disk so that the website can remember who you are. A cookie will typically contain the name of the domain from which the cookie has come, the 'lifetime' of the cookie, and a value, usually a randomly generated unique number. Two types of cookies are used on this website:

session cookies - temporary cookies that remain in the cookie file of your browser until you leave the site;

persistent cookies - these remain in the cookie file of your browser for much longer (though how long will depend on the lifetime of the specific cookie).

Cookies can help a website to arrange content to match your preferred interests more quickly. Most major websites use cookies.
Find out more about cookies

How we use cookies on our website and what information we collect

Session cookies:

• To allow you to carry information across pages of our site and avoid having to log-in many times.
• Within registration to allow you to access stored information.

Persistent cookies:

• To help us recognise you as a unique visitor (just a number) when you return to our website and to allow us to tailor content or advertisements to match your preferred interests or to avoid showing you the same adverts repeatedly.
• To compile anonymous, aggregated statistics that allow us to understand how users use our site and to help us improve the structure of our website. We cannot identify you personally in this way.
• Within research surveys to ensure you are not invited to complete a questionnaire too often or after you have already done so.
• To store registration information so that if you are a member you only have to re-enter your password (instead of all your registration information) each time you visit the site, and so that the site can recognise you as a member. We do not pass any personally identifiable information obtained by cookie use to third party advertising companies.

Third Party Advertising
We use third-party advertising companies and networks to serve advertisements. These third-party advertising network providers may use web beacons (more fully described below) and cookies to help present, better target and measure the effectiveness of their advertisements, using non-personally identifiable data (such as sites visited and browser type) gathered over time and across their networks of web pages to determine or predict the characteristics and preferences of their audience. If you would like more information about this practice, as well as your choices about not having this information used for online behavioral advertising by these ad networks, click here: http://networkadvertising.org/consumer/opt_out.asp.