He dared make acquisitions of quality sites, like TechCrunch.
Another difficulty is finding quality sites to post links.
Halfords said: "The difficult conditions in the property market are limiting the availability of quality sites.
Google did not name any of the "low quality" sites it had in mind when it retooled its algorithm.
Google's reputation depends on it leading users to high quality sites, so the better and more original your content is, the more Google will like you.
When parents consult librarians on this sensitive issue, we're happy to lend our expertise to help guide parents and young people to accurate, quality sites online, just as we've always done with literature.
Generally, trees on better quality sites had higher growth.
AOL wants to pair quality video with quality sites, and charge a premium for the advertising.
Several approaches have been proposed for filtering low quality sites and cells [29, 35, 43 46].
So we have addressed content quality, site architecture and site credibility.
