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What are cookies used for?

Common marketing applications of cookies include:

A 

 Personalising a site for an individual. Cookies are used to identify individual users 

and retrieve their preferences from a database.

For example, I subscribe to the Econsultancy service www.econsultancy.com; 

each time I return I do not have to log in because it remembers my previous visit. 

Many sites feature a ‘Remember Me’ option which implies using a cookie to remem‑

ber a returning visitor. Retailers such as Amazon can use cookies to recognise 

returning visitors and recommend related items. This approach generally has bene‑

fits for both the individual (it is a hassle to sign in again and relevant content can be 

delivered) and the company (tailored marketing messages can be delivered).