Why do advertising networks give an option for providing a default Ad network to their clients?

What is the name of the ad format that floats into view when a user visits your webpage?

You cannot mention the price of the product or service in a Google Adwords Ad.

What is the term for the form of advertising that is automatically served or placed on a web page in response to the page's keywords, content and text.

A publisher's website is paid only when visitors click on the advertiser's ad and fill up an inquiry form. This is an example of:

The Alexa toolbar provides information about websites related to:

What is the black hat SEO method of displaying content to internet bots that is different than the content displayed on a user's bowser?

What does LMS stand for?

Generally, are SEO or PPC campaigns easier to track?

What are the two, most heavily weighted factors Google uses to rank pages?

A link from another website pointing to your own is called: