Methods for link building
 

Link building is an essential part of off page SEO. Goggle Search Engine ranking is based on quality and relevance of back-links that points to your website. For e.g 10 quality and relative links can beat 100 links from web directories. So relative link building is needed for to get better ranking in Google. You can do link building for your site by yourself. Though it is a time consuming process it is not hard. You can easily get quality one way links to your website. You can find all links to your competitor's website with the help of back link checker tools which are free online tools to find back-links to any website.

The following are the important methods for link building.
1. Article submission
2. Forums Posting
3. Blog Commenting
4. Directory Submission
5. Link Exchange
6. Social Bookmarking

Link buliding is not an easy task for any means.There some important methods of link buliding.
1. Squidoo lens
2. Posting articles
3. Popular hub pages
4. Building quality back links
5. Interlinking and Linking

Relevancy plays vital role in SEO; to stay in competition and keep your high position secure on SERP it is necessary to build relevant backlinks from high PR websites.

Link Wheels, Guest Blogging are useful link building techniques but make sure to submit unique and informative content.

Yes I am totally agree with bryanbell: Local and niche sites with good PR plays a huge role today specially Google Algorithim update.