The first and the foremost rule of Quality Link building is DO NOT BUY LINK. All sources luring you to give hundreds of links for a meager amount are just spamming sites, they can do more harm them good to your website. Below are listed some genuine methods of getting Quality links to your website, you will have to work for them, but your success is guaranteed. Another thing is that quality of the link matters not the quantity. 1. Open directory Project (DMOZ) It is the largest human edited dictionary on the web, Submitting your website and being accepted by DMOZ is a very big thing, as they reject more websites than they accept. Google gives high importance to link from DMOZ to any websites. 2. Link baiting is another good source of getting quality links, Content is the king of Internet if you know something that the majority of people do not know and can pen down your knowledge in user engaging words than people may link you through their website. Giving free e-book, downloadable tutorials, fact sheets or report for people to download from your website is another example of link baiting. 3. Investigate your competitor links website from where are they getting links from. link:www.snapdeal.com will show the number and source of the link for a website named snapdeal.com. You can ask websites providing a link to your competitors to provide a link to you also. Chances are if you have something which is useful for your consumers they will for sure provide a link to you. No harm in asking. 4. Add Google +1 and Facebook buttons on your website. 5. Get listed locally; Use local listing of search engines like Google to get links from them 6. Get PAID DIRECTORIES like yahoo directory, 'Best of the web ' paid directory, business.com paid listing of your Web site. 7. Submitting articles on topics related to your website, product or service is another great idea of getting quality links. Submit good related content on different article submitting sites. 8. There are many presentation and video sharing sites too, like Slideshare, YouTube and many more. You can submit Quality content on them and link to your website. 9. Participate in a forum discussion on topics related to your product and services, even guest Blogging is a good source of getting the quality link. 10. Automatically tagging copy and paste with a hyperlink to your website, so that when anyone copy something from your website and paste it, your website link is automatically tagged. 11. Creating your Social media profile across Facebook, Twitter, and Google +1 etc. 12. Last but not the least do not link to Bad neighborhoods i.e. spamming sites, sites offering link for free or a meager amount are mostly spam sites
Joining social networks like twitter and facebook and dropping your article links therein are legitimate ways to built link. Although it is a nofollow link, some SEO experts believe this will have some SEO effect.
Use Youtube, Soundcloud and all other big web2.0 platform and link it back to your site. They will definitely be legit, other than that. Build quality web 2.0 and do the same to those, and use those that you build to link to your money site.
Always focus on creating natural backlinks. Google loves natural backlinks and it can be gained by creating fruitful and awesome content.