On page search engine optimization refers to

Programming keywords into a website Evaluating each page of a website for design The amount of links coming into your website The number of search engine sites a website is submitted to

In terms of number of search queries, YouTube is the:

2nd largest search engine on the web largest search engine on the web. 3rd largest search engine on the web. Youtube does not qualify as a search engine.

Web 2.0 is a term that describes

a new way to utilize the World Wide Web. the final published form of web content. the decreased degree of interactivity among users. the first Smart browser for mobile internet

Quality Score and Ad Rank are calculated:

every time someone does a search that triggers your ad. Every time your ad is eligible to serve on a Display Network pag A few times a day, based on your ad scheduling settings Every time you change your CPCs within your account.

Mobile marketers are able to reach audiences

All of these Using a pull strategy In real-time Using a push strategy