Can anyone tell me about new strategy to get the backlinks?

Here is a great video on how to get backlinks in white hat ways..

http://www.ginside.com/2009/3498/how-to-get-backlinks-the-whitehat-way/

The best SEO strategies are :
1.Use Checklists and Validators
2.Deep linking
3.Article exchanges
4.Use Title and ALT Attributes
5.Optimizing File Nomenclatures.

Well, there isn't any new link building strategy as such. It's the same:
- List in niche directories
- Submit your website to social bookmarking & social networking sites
- Post on online forums
- Write guest posts for related blogs to your niche.
- Write emails to other bloggers/ website owners in your niche offering them to guest post
- Write content that is deliberately designed to attract links towards it.
- Create mini-sites and small blogs to pump links to your main site.
- Create Squidoo lenses
- Create Widget for Your blog
I highly recommend guest blogging as it is really working for me and helps in increasing backlinks and followers. I use a tool called 'Keyword Country' to find authority blogs where I can guest post to.

Google keep on changing their algorithms and therefore you should keep on changing your SEO strategies if you want to score high ranking in SERPs and also high PR. Search engine optimization used to be the holy grail of getting more traffic. The world of SEO is also constantly changing as search engines tweak their algorithms, and new search engines come and go.

social bookmarking submission of your website is one sure goodway of driving traffic to your website. When you go public with your URL, your site link is placed for a while in other relevant catergorywith high ranks. However, since social bookmarking sites is so popular it takes no time for your listing to scroll out. Knowing how best to use the time 'when your site is in the zone' to capture visitors requires some tricks that is used by experts.

Writing unique content is a best  strategies for boosting incoming links. The description tag should be a useful, enforcing summary of your page content.

There are so many SEO strategies that you could use in order to increase the traffic of the promoted websites into search engines. However, it is important to build high quality back links.