I don't know how can google index so many pages of websites. One thing makes me very surprised is how can google choose good websites or not... I want to make my site friendly wiwth google. Please show me the way... Thanks.
how exactly they do that? google only knows. but google have this program called bots that crawl the world wide web and since most website are interconnected they can indexed its content. to make your website google friendly i suggest to read and follow their guidelines: http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=35769
you can check how google works by googleguide.com/google_works.html or you can write howgooglework in google.you will find lot of usefull information. Visit Us: ePixeltechnologies Canmedglobal
Google's web crawlers read the content of a site (the HTML, everything) and run it through a series of algorithms to determine what it's finding.