Link building in SEO refers to a technique to build inbound links for a website. Inbound links are just like a vote. Through inbound links, search engines can analyze not only the popularity of a website but also its trust worthiness. Trust worthy sites often link to other trust worthy websites while spammy websites do not receive much input from trust worthy websites. Link building is not the only method to judge credibility of a website but it is a very important method. Most SEO pundits consider that search engine algorithms rank a website with respect to the number of quality inbound links and traffic. There are different techniques for link building. Let me explain them one by one.
Reciprocal link is a link that's mutually shared between two websites. For example if Alexander Solicitors & Advocates is linked to Cheap VPS UK and Cheap VPS UK is linked to Alexander Solicitors & Advocates, it means their both linked reciprocally.
Resource links are very important and get a lot of attention from search engines. Resource links are suppose to direct visitors to some content which is suppose to be beneficial for the reader. For example if i am writing about Linux hosting, I can direct the reader to Microcom IT's Linux Hosting page by using "Linux Hosting" as anchor text. At this page the reader can know about the Linux hosting service provided by Microcom IT. Alternatively the link can also point to another location where you think the content is more appropriate.
Forum signature linking is a technique used to build back links to a website. This is the process of using forum communities that allow outbound hyperlinks in a member's signature. This can be a fast method to build up inbound links to a website and improve the Search Engine Optimization value. It takes a lot of time to build a certain level of profile ranking on a forum before we can put a link into the signature. Secondly, most of the forums do not allow advertising at all or they have a separate section for this purpose where you need a very high forum profile rank for advertising. I would prefer that you use this technique as the last resort.
Directory is a link bank which contains many links and categorizes them under the relevant category. Mostly there are three types of directory submissions you can do. One is free submission which does not cost you anything. Second is reciprocal submission which asks you to add their link on your website before you submit your website's link. Third is feature submission for which the directory admin charges you actual money to keep your website link in the feature listings for a certain period of time. With featured submission, your website link will normally be approved within 24 to 48 hours. Otherwise it will take 3 to 7 weeks before the admin reviews your website link and approves it.
Leaving a link in a blogs comment section may get you clicks by readers of the blog if the comment is well-thought-out and pertains to the discussion of the other commentators and the post on the blog. Most blogs provide different options to select for the type of profile such as anonymous or use a name and URL. I prefer the Name and URL. You can use a keyword as the name and the desired website link as URL.
Social bookmarking is a way of saving and categorizing web pages on the web. Because bookmarks have anchor text and are shared and stored publicly, they are scanned by search engine crawlers and have search engine optimization value.
Stay in touch folks. Hopefully tomorrow there will be a different topic but we will keep on writing on SEO from time to time. May you have a very blessed and successful day.