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1) If you do link exchange make sure the website topic is similar to yours and check their page source for the "nofollow" attribute. If it's there delete their link.
2) Create a google and yahoo sitemap and submit it.
3) Changing or adding Content regularly of your website is NO2.SEO RULE
4) the NO.1 SEO rule is to have patience. Really it is.
“What makes you comfortable can ruin you, but what makes you uncomfortable is the only way to grow.” – Bill Eckstrom.