For maintaining website ranking , use of well content and SEO use is helpful,
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Quality Content, quality SEO (both On Page + Off Page), backlink, SMO

If you want to maintain your website ranking on Google, Then don't stop your activity which you have used to get rank on Google. Just do it on regular basis.

Placing the keyword is not as tough to maintain keyword on top position. For that you need quality content to share on blogs and in article. Don't forget to share you links on social networking site.

Maintain website ranking than quality all(offpage/on page).

First of all make sure that your website have an quality content and then do little more off page optimization and posts some blogs regularly and also forum postings..
visit: http://www.fomaxtech.com/

If you want to maintain your website ranking on Google, Then don't stop your activity which you have used to get rank on Google. Just do it on regular basis.For more,
visit:http://www.fomaxtech.com/

For increasing your website ranking on google ,do activities on regular basis , also share your links on social networking website.
For more visit: http://www.fomaxtech.com/