We use different types of cookies to manage the navigation and usability of the site. Some or all of the cookies listed below may be stored in your browser. You can view and manage cookies in your browser (although browsers for mobile devices may not offer this visibility).

Usage category Example
Preferences:
These cookies allow our websites to store information that changes the behavior or appearance of the sites themselves, such as your preferred language or the geographical area in which you are located. By memorizing the geographic area, for example, a website may be able to offer you local weather forecasts or local traffic news. Cookies can also help you change the text size, font and other customizable parts of web pages. The loss of the information stored in a preferences cookie could make the website experience less functional but should not compromise its functioning.
Security:
We use security cookies to authenticate users, prevent fraudulent use of login credentials and protect user data from unauthorized parties. For example, we use cookies called "SID" and "HSID" that contain digitally signed and encrypted records for a user's account ID and most recent login date. The combination of these two cookies allows us to block many types of attacks, such as attempts to steal the contents of forms you complete on web pages.
Processes:
Process cookies contribute to the functioning of websites and the offer of services that visitors expect to find there, for example the ability to navigate between pages or access secure areas of the site. Without these cookies, the site cannot function properly.
Advertising:
We use cookies to make advertising more engaging for users and more useful for publishers and advertisers. Some common uses of cookies include selecting advertising based on what is relevant to a user, improving campaign performance reports, and the ability to avoid displaying ads that the user has already seen.

Session status
Websites often collect information on how users interact with them. This can include the pages that users visit most often and the possibility that users receive error messages from certain pages. We use these "session state cookies" to improve our services and the browsing experience of our users. Blocking or deleting these cookies will not render the website unusable. These cookies could also be used to measure the effectiveness of PPC (Pay Per Click) advertising and affiliate advertising.
Analytics
Google Analytics is an analysis tool from Google that helps website and app owners understand how visitors interact with the content they own. A set of cookies can be used to collect information and generate website usage statistics without personal identification of individual visitors by Google.In addition to generating reports on website usage statistics, the Google Analytics pixel tag can be used , along with some advertising cookies described above, to allow us to show more relevant results in Google properties (such as Google Search) and across the web. Read more about Analytics cookies and privacy.

HOW TO DEACTIVATE COOKIES ON YOUR BROWSER
Below are the links of the main browsers with instructions for deactivating cookies:

Chrome, visit http://support.google.com/chrome/bin/answer.py?hl=es&answer=95647
Explorer, visit http://windows.microsoft.com/es-es/windows7/how-to-manage-cookies-in-internet-explorer-9
Firefox, visit http://support.mozilla.org/es/kb/habilitar-y-deshabilitar-cookies-que-los-sitios-we
Safari, visit http://support.apple.com/kb/ph5042