How we use Cookies
A cookie is a small piece of information that is stored on your computer’s hard drive by your web browser and cannot do your computer any harm. When you revisit the associated website the server will recognise the cookie, which gives it information about your last visit(s). In other words, a cookie allows a website to remember choices and submitted information so that you will not need to reset certain user-defined features or re-enter details. Cookies are either permanent (usually with a long term expiry date) or are only used in the current session and cease to exist when the browser is shut down (so called ‘session cookies’).
How cookies are used on this website
The following table lists the cookies that may be used on this website.
| Cookie | Issued By | Expires | Purpose |
|---|---|---|---|
| _utma | Google Analytics | 2 years from set/update | Identifying Unique Visitors |
| _utmb | Google Analytics | 30 minutes from set/update | Determines visitor session |
| _utmc | Google Analytics | On browser close | Determines visitor session |
| _utmz | Google Analytics | 6 months from set/update | Tracking Traffic Sources & Navigation |
| _utmv | Google Analytics | 2 years from set/update | Custom Variables |
| _atuvc | AddThis | 2 years | The _atuvc cookie is created and read by the AddThis social sharing site JavaScript on the client side in order to make sure the user sees the updated count if they share a page and return to it before our share count cache is updated. No data from that cookie is sent back to AddThis and removing it when disabling cookies would cause unexpected behavior for users. |
We use permanent cookies as well as session cookies to provide features of the site that require authentication. To secure the flawless functioning of the website we would recommend allowing at least the setting of session cookies as they are essential for access to authenticated parts of the site – for example where you can contribute resources.
Allowing or declining cookies
Most web browsers allow some control of most cookies through the browser settings. To find out more about cookies, including how to see what cookies have been set and how to manage and delete them, visit www.allaboutcookies.org. If you delete cookies it may prevent you from taking full advantage of the website.
Links to other websites
This cookie policy does not cover the links within this site linking to other websites. We encourage you to read the privacy statements on the other websites you visit.
Changes to this cookie policy
We keep our cookie policy under regular review. This cookie policy was last updated on 20th June 2012.