blog and forum commenting are one of the ways to build backlinks. Find a Forum or Blog that is related to your niche and post a comment. Just don't make spam comments or you will get banned. Good Luck!
Yes, search engines can and will penalize a site that looks like they are getting unnatural backlinks and an indication to them that this is happening is a sudden increase of backlinks.
The best way to get backlinks fast that the search engines will love and not penalize you is through article marketing backlinks. The strategy I used to get a new website on the front page of Google for over 100 keywords is using an article spinner that submits to unique content to thousands of blogs and directories. Unique Article Wizard allows you to schedule you submission so that it is delivered gradually and not at once....With that said, I generate thousands of backlinks monthly and I am still seeing growth.
Focus more on quality back links and not on quantity. You could either buy links, do some reciprocal links or natural linkbuilding which is more Google friendly like blog commenting, forums posting, social bookmarking etc.Your strategy is called contextual linkbuilding wherein you create articles or blog about your site.
Building quality links? Do off page optimization. You should submit do the process of article submission. And search engines index forums frequently, so posting in forums is a good way to gain quality backlinks with the anchor text of your choice. FOR MORE INFORMATION you can read all the thread here in forums. Which is related to your question
The best way is to write quality articles and submit to ezinearticles, its the best article directory and you can get lots of backlinks and also traffic from them.
Hope this Offpage SEO techniques will help you in building back links quickly List of Off-Page SEO Strategies to Build Online Reputation.....
I am also worry about for one website http://www.sybotechnologies.com to get some back ward links on quickly
Backlinks are also called inbound links, which today is one of the famous technique to getting the traffic to your site. Backlinks are links on one website that lead back to another website. The more established, high quality, and high Page Rank the website that contains the link has, the more power it has to help the linked website with its search engine position. There are many ways this can be done. Some people advocate writing and submitting articles, posting on forums, making comments on blogs. Others talk about submitting their website to various Internet directories. To read more on getting backinks read this article which would help you more , Backlinks and how to get them
and one more thing, forum signature will not be considered as a backlink by googlebot, its clever enough to distinguish proper backlinks, forum signature is only to generate traffic to your site..