Objectives of knowledge management

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).