Uses new spider for indexing by google

Hi Friends, Yesterday I read a news on google search engine. Google uses a new spider for indexing web pages for the purpose of Adwords advertising system. The new crawler software program analyze the content of a landing page. The main task which google to be acheived is tries to determine the quality of landing page on which ads are placed. If some webmaster not like to index their page by this spider than its page adword quality score go down by google.