But, mostly bloggers did a little thing that it make themselves lost some backlinks. What are they? Just check it out.
Giving comment in another blog is my first recomendation. But, if you are a blogspot user [blogger], u should give attention when you've done writing comment. Before you decide to click submit button, take a look at 'Comment as' in embedded comment-box or 'Choose an identity' if on pop-up comment-box. Make sure that you select 'Name/ URL'. Why? Because if you let the Google account as your indentity, I am sure that you'll lose your backlink.
Mostly blogger missed this one.
How if there is no 'Name/ URL' option? It's easy. Just leave it. There are milions other blogs :D