Caching - An area of memory that stores data or instructions for faster computer performance.

click though - It refers to an act of clicking on advertisements online that is targeted towards the advertiser.

click though rate - CTRs that are expressed as a percentage represents the average number of click throughs for hundred impressions.

Content - Material that can be read, viewed, listened to or watched.

content network - It refers to a medium or a platform through which advertisers can make use of ads to reach out to their customers world wide.

Contextual advertising - Advertising links or ads that are generated according to web page context.

conversion rate - It represents the percentage of users who took a decisive action.

cookie - It refers to usersinformation stored in a website so that they are remembered when a request is made in the future

Copyright - A legal way of protecting an author’s original work.

cost per click - It represents the percentage of users who took a decisive action.