» Above the Fold
Also refered to as the "viewable" part of a webpage "onload", above the fold refers to the area of a webpage that is viewable to a user without scrolling in any direction. The standard monitor resolution and viewable pixels is currently 1024x768, but this doesn't mean that 100% of the monitor can be used to display the webpage.
» Accessibility (aka website accessibility)
With regard to users with certain disabilities such as color blindness, blindness of any type, hearing problems, special interface devices, etc...accessibility refers to the ease of and degree to which your website can be accessed by all users, not just average users who can view and comprehend multiple font faces, sizes and colors, as well as use a keyboard or mouse to interact with the site.
» Acquirer
An acquirer is an integral part of the merchant account and online payment processing process. Acquirers are licensed financial institutions or other licensed member of major bank card providers (such as Visa and MasterCard) that offer merchant account credit card processing services to ecommerce website owners.
» Ad Audience
Defined simply as the quantity or number (head count) of unique visitors or consumers that view a given piece of advertising within a set amount or specific amount of time. If 50,000 Internet shoppers saw your ad in a 24 hour period, your ad audience would be 50,000.