for example, ebay.com use google to search "link to" link: ebay.com 230,000 results use google to search "content contains" "ebay.com" 11,900,000 results google: "link to" and "content contains" whats the difference? how does google distinguish between them? and i guess only "link to" increase a website's pagerank , am i correct?
<a href="http://www.ebay.com">click me</a> <-- counts for "link to" ebay.com <-- counts for "page contains" it only helps PR if it's hyperlinked.