Linking, keywords, and guest blogging are among the changes to Google’s new algorithm for ranking websites. The article goes into some details about the new taboos and some that used to work but are no longer in play. One such example is a paragraph that has disappeared from the intro.
“Your site’s ranking in Google search results is partly based on analysis of those sites that link to you. The quantity, quality, and relevance of links influences your ranking. The sites that link to you can provide context about the subject matter of your site, and can indicate its quality and popularity.”
This is a move towards something Google mentioned months ago high quality sites that provide great things are better than links.
Other items like keyword rich posts, including alt tags are also talked about as well as guests posts.