[...] Every once in a while we choose blogs that we read or services that we use. Listed below are the latest seo services that we choose [...]…...

Read the google blogs. They contain a lot of basic advice, but occasionally have a glimpse into the inner workings, and may help dispel common myths passed around in our community.

I'll reinforce your comment about the meta keywords with a link to official google word on it:
http://googlewebmastercentral.blogsp...-meta-tag.html
Don't overstuff your keywords, in some cases google uses that as a spam indicator. Google doesn't use meta keywords at all, though other search engines might. My source on the search quality team at google agrees that this is true.

The www/non-www optimization isn't for google. Google knows that www is the same as non-www in most cases, and absolutely does not penalize that as duplicate content. Removing the www may improve things slightly for other search engines. Follow the advice here closely:
http://googlewebmastercentral.blogsp...t-penalty.html

I can't emphasize enough that you should have webmaster tools and analytics accounts. If you don't know what you're doing wrong, you can't fix it. Both of those help you figure out how your site is performing, where your traffic is coming from, and alert you in advance to problems. Get both accounts even if your site is completely black hat. If you know how to analyze your traffic without them, that's great, but they add legitimacy to your site, since most real webmasters use them.

Learn about nofollow and do*follow links. It's easy to get caught up in the excitement of putting your link all over the web, but in most cases, nofollow links are useless to building your rank. (some people disagree with this, but I think they have not done their own experiments)

This is a good intro to classic pagerank and gives further good hints about how ranking and nofollow work:
http://www.mattcutts.com/blog/pagerank-sculpting/

Don't get caught up on pagerank numbers. It's only meant as an extremely rough guide, and (again, based on conversations with google engineers) it's not actually a strong part of their ranking algorithm these days. Aim instead for content relevancy. If your site is relevant, it will rank better than less relevant sites with high pagerank.

The last thing to remember as you're building your external backlinks is the authority of the linking site. Sites that are ranked highly themselves carry more weight for outgoing links. Pages with fewer outgoing links carry more weight. There is disagreement about how the ranking of a root site carries over to pages within it, but many people (myself included) feel that the weight of an individual page is the most important determining factor in the value of an outgoing link. This means that things like profile links and links at the bottom of forum posts carry very little weight unless the profile or forum post itself is relevant. This is why 15 well placed do*follow links from authority pages will place a page higher than a similar page with 200K forum spam links.