One Hour Backlinks is a service that delivers backlinks via automated blog commenting software. You select the URLs you want to get links for, enter your keywords and the spun contextual comments you want to make. Then you process your order and they guarantee to deliver your backlinks and a report of where those links are within an hour or less – usually it takes around 30 minutes before you get your backlink report by email.
There are also options to only get backlinks that are DoFollow (it is a mixture of DoFollow and NoFollow by default) and/or only get backlinks on indexed pages. We use One Hour Backlinks ourselves quite regularly to provide volume and variety to our overall backlinking strategy but we would not recommend this being your sole source of backlinks. Visit One Hour Backlinks.
Explore other backlinking methods.

Small business owners and solo-practitioners are notorious for ignoring marketing efforts. It’s easy to do, isn’t it? You are ensconced in your business; serving clients, shipping product and doing what you need to do to keep the money flowing in. But if you are not spending time and money to market your business, then you are ignoring a critical success component.
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It is quite useful but i have one question on this is that now it is worthy for us as Google update its algorithm which is called Penguin update.
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It is a good question. I think this type of backlink is now less useful than it was before. However, I think there is still some value as part of an overall backlinking strategy.