Need help for SEO

[Chirag753]

After Penguin 5 what are the major changes in onpage that is necessary and what are the best techniques for link building?

[csfarnsworth]

Meta Keywords that we used widely for Keyword stuffing and ranking well.Remove them. Do not over do your keywords in Meta tags and Htags. Work on quality and optimize your site wisely based on Google webmaster guidelines.
If you need ultimate solution for linkbuilding try this one.
http://moz.com/blog/the-death-of-link-building-and-the-rebirth-of-link-earning-whiteboard-friday

[SearchOfficeSpace23]

Your question shows the problem SEO has had for a long time, which is trying to optimise a page/site for search engines, specifically, Google.

You should be looking at your pages in terms of your customers - Are your pages easy to read, do they contain unique interesting information relevant to the type of query that might return your page, do you engage with your site visitor, can they find what they want on your site easily and so on.

The same is true of the term 'link building', think in terms of 'link earning', if you produce content that is interesting and worthwhile engaging with then people will want to talk about and share that content.

Don't get me wrong, having clear unique page titles and on-page relevant headlines, and using different routes to getting your content out there is not a bad thing. Press releases and media stories, videos, infographics, interviews, customer reviews etc etc are all good ways to get the word out there but the question to always ask yourself is "Why?" - Why should someone want to read about your site, or do business with you - Why do you have a site - if the only answer is to make money then it's unlikely you'll be a must visit must write about or link to site.

Good luck!