Your question isn't quite clear. If you want to do link building yourself - you can start by simply writing articles and distributing them to article directories, blogs, and other web sites. It's time-consuming, but it's a great place to start.

If you're outsourcing this service, then who you hire should know what they're doing already.

make sure to well interview anyone you hire about link building

You can build links by social bookmarking, directory submission, article marketing, forum posting, blog commenting.

If you're asking how to do effective link building, then the answer is do it manually and do not spam. Build quality links from related niches with good reputation.

So best to only blog comment on related sites to your industry or whatever? There are not a ton of blogs in my industry that rank high or are even checked and approved.

Well, you can earn free backlinks in many ways, and it is sensible to use different techniques for link building rather than focusing on any particular method. You may use the following methods for your link building crusade:

Blog commenting
Forum posting
Bookmarking
Directory Submission
Article Submissions

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You can build links with your own one by one or use software. amr, scrapebox, senukex, wikibomber, press release and etc.

Have you checked fiverr for help? Lots of good gigs on there to help your linkbuilding needs.

If you're doing it by yourself, you should know how the people would want to see you on the Internet. You should also know what they want from you. Get to know them by joining online forums and groups on social media sites so that you know what they really want to see. Create content based on that data you've gathered and share links that will lead the people to that content. Make it easy for them to share your content on their social media pages so that it can reach their networks.

Use automated social bookmarking service, I have tried socialadr. You can build a lot of backlight from there. Just pay a monthly fees for 17usd then you can just post ur URL on it, people will come to share ur URL at their social bookmark sites.

Link wheels
Social Media Marketing
Local Citations

For link building you can post blogs on blog sites creates accounts on blogs sites and then posting blogs,with the help of article and directory submission you can creates links,

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Also answer in q&a site.

Search in Google. watch videos. Read Seomoz and seobook regularly. you will get the best ideas about SEO and link building.
thanks

You can do it with Blog Walking, via Forum Signature, insert your links in a Blog Post (Paid), Link Exchange, Submit Your Link in Directory, You Can write articles and submit its to Articles Directory. You Can also using Voltrank for automatic link exchange.

Check out the servces section on this site and read reviews.

I always outsource linkbuilding as it allows me to scale my business. If I didnt outsource Id probably only have like one or two clients.

/begin-ass

Personally, I use a multitude of bird peckers to peck my keyboard until all link building is complete. It's cheap than outsourcing. My WSO on this tactic will be out next week and I promise to give you the very best deal!!!

/end-ass

I suggest reading - A LOT - for at least a month. Then play around with your own websites, long before every working on someone else's.

You can built ,,,,,
social bookmarking
blog commenting
forum posting
article writing

use social bookmarking sites, directory sites, article sites, web 2 property sites

Yes quality link building is very necessary and you should submit your website to high PR Dofollow Forums, Blogs, Articles and Social Bookmarking sites.

Unfortunately there is a lot of misinformation / redundant strategies nowadays as after April the game has changed quite significantly. Therefore beware of what advice you take to heart.

Link building has many ways.
article creation and submission,
Link building via profile making, forum posting, creating backlinks via answering high PR posts. social bookmarking. etc

contact me if you want my services in cheapest rates.

You can use Socialadr account for your backlinking.

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The best way to handle this is to outsource it out. There are a lot of capable warriors here that can help you out for a low price and do a great job. Spend your time doing what you do best, this way you can move foreward and promote your business.

You can start with
social bookmarking
article submission
blog commenting
forum posting

Do not do much more....

Warrior forum is a good place for learning all about backlinkng. You just need to read all popular threads of this forum regarding backlinking. Blog commenting, guest blog posting, article sharing, web 2.0 article submission, etc. are powerful technique of getting good quality DoFollow backlinks.

Link building is Competition beater technique in making a keyword most relevant for a web page and responsible for its Search ranking .Caring about the Natural linking and Quality of back-links .Few Good techniques are Blog posting ,Forum Marketing ,Article Marketing ,Directory Submission etc

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Link building can be done with diverse methods, you need to read a few guides online. For a beginner I would suggest you to start with forum posting. It's an easy way to get backlinks, but make sure you comment properly in forums and don't just spam.

Link Building is the process of getting back links or exposure with the help of different sources.There are number of strategies are available for doing link building.Article submission,blog commenting and forum posting are best among all.But After New Update made by Google in month of April 2012 named Penguin,Link Building is going more strict.So when you use any strategy in SEO keep in mind relevancy and quality.Because relevancy generate the long term results.

For link building do bookmarking, Classifieds, directory, blog commenting on high pr sites.

Even i am also trying to build backlinks for my new Discount & Freebies blog, Waiting for my blog to indexed in Google.

If new to SEO, start with
1. Blog Commenting - It means visiting blogs related to your genre and putting comments on those blogs (accompanied by link to your site)
2. Social Bookmarking: Make a page for your site on FB, create an Twitter account and add your site to google+
3. Search for Online Web Directories and Submit your URL to them.

These are the best things to do, imo, for beginners.