There are many different kinds of backlinks and one of them are classified ads. What is it and how does it work? The thing you do is you create accounts on the websites below and just start making advertisements for you website or the thing you offer on your website. The websites I’ve given you are complete free and every website offers you an opportunity to add a backlink in your ad as well. Not all the ads will stay forever but for now it’s good for your link diversity and you can allways do it again over six months.
Make sure you use a proper text and don’t forget to add your URL/backlink in the body or sometimes in the field provided specially for your websites address.
Here you go, a list of free classified ad websites: