SEO is very important for page rank and getting traffic, if you do it wrong you will end up losing traffic and rank. The first ground rule is, if someone is trying to sell you SEO, you should not buy it. Several companies offer options and link building services, they should be avoided. Google has been able to shut down these sort of companies in the past and punished all the sites that used them Stick to white-hat SEO, and this Infographic is going to show you some of those methods used to do Search Engine Optimization the right way.
Here are the major points:
Guest Post: Look for guest posting opportunities in high-ranking sites in the same niche area as your website.
Fix Broken Links: Broken links devalue your site because they increase your bounce rate and therefore affects your ranking.
Press Releases: Several companies offer Press Release services for a price, avoid using keywords, this is a sign to Google that you are trying to rank for a specific keyword phrase unnaturally.
Social Media: Facebook, Twitter and other social sites account for about 20 to 30 percent of traffic for several huge news outlets. Doing giveaways on your website is a good way to build social metrics.
click on the infographic for a larger view