I've slightly discussed on importance of links. However, there are some details that you must know about links—inbound links and outbound links.

Inbound links and Outbound links

There are few types of links, but generally, links can be classified into two types, which are inbound links and outbound links. Inbound links are backlinks, which I've discussed before, whereas outbound links are links that direct out from your site. i.e. If www.world-avenue.blogspot.com links to www.there.com, then it is considered as outbound links for www.world-avenue.blogspot.com and inbound links for www.there.com.

Inbound Links and Outbound Links

Inbound Links

Inbound links are backlinks (sorry for repeating). Backlinks are quite important for your site to get a higher ranking for a certain search query. And, backlink is one of the vital criteria that should be considered in SEO. Let me repeat again, backlinks may be good or bad, in term of quality. If you have thousands of backlinks, then sure you are doing good deed for your site to get top-ranked. However, if these thousands of the backlinks are coming from some low-repute site, like link farm, then you should stop working on it. This would make thing worse, which probably kick you down from getting higher rank.

Thus, don't build bad backlinks. If you don't have heavy backlinks, don't panic, there are few ways to solve this problem. You may buy some backlinks. There are a lot of ads about selling backlinks, or even with a little search, millions of results will come out and sure you will find a suitable one. However, if you are a beginner and feel reluctant to pay for dimes, don't worry, there are some free alternatives. You may look up for some directories on blog submission or link submissions like www.ongsono.com and others more! Well, there are still plenty of ways to generate backlinks, you may see 5 ways on generating backlinks.