MichaelOsborne

On Page Optimisation and Off Page Optimisation. They carry fairly equal weight. On Page includes keyword densities, LSI, optimised alt tags, location of key phrases, h1,h2 and h3 tags,internal linking as well as a range of other lesser weighted elements. Off page boils down to inbound do follow linking, numbers and quality, as well as CTR's in the SERPs which has been impacted since Google Preview was released(though not significantly).

rahnjoseph

The people who are working in google also don't know about this fact and this is a very public loving fact.

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adam23jones

The criteria is good optimization, proper keyword densities, meta tags must be relevant and the most important is the do follow back links.