1. Submit your site to Web Directories: This is one of the best methods in order to get sufficient backlinks quickly.

2. Submit Press Releases to PR sites : Submit your site’s launch to various PR websites who will distribute the same to other online new sites.This is another method to get a free link.

3. Get Reciprocal Links with Similar Websites: Obtaining reciprocal links with similar sites helps in getting links as well as traffic.Obtain link partners by emailing them or by searching through forums.

4. Squidoo Lenses and Hub Pages: These are websites where we can create several
“lenses” and “hubs”. By posting good content and using anchor text links , several backlinks can be obtained.

5. Submit to Article Directories: Create articles related to your website and submit it to article directories for a back link and some traffic.Chances are that your article will get more links if it is picked up and published on other websites.

6. Social Bookmarking/Voting Websites: Certain social voting website like Digg are often crawled by search engines and their links do help to get a website indexed. 3spots has the biggest list of social voting and bookmarking websites.

To get more tips ,visit the site http://forums.webconfs.com/showthread.php?p=21844#post21844