What is backlinks and how to get it for my Hubs

Need Info about backlinks.How to put dofollow and domotfollow in bound link.I mean how to put html of dofollow/donotfollow backlinks.Can I know which are the dofollow/donotfollow inboundlinks for my HUb i.e http://hubpages.com/hub/online-form-filling-and-adposting-jobs

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retellect profile image79

retellect says

7 years ago
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harrist profile image60

harrist says

6 years ago
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