There are many mods available for making your shopping portals more SEO Friendly. Here are some of them:

1.   Default SEO Friendly option in Oscommerce converts the site into bit seo friendly mode but the URL’s are not easy to remember, here is the option for that:

Use Search-Engine Safe URLs (still in development) – Enable this option to True and the final Result which comes is www.yourshop.com/product_info?products_id=1 which is indexed by all Search Engines.

Remove the hyperlink of Title from the single post:
Its common mistakes I have seen in the blogs. If a visitor in the single post then the title must not be hyperlinked.

Use Wordpress Plugins:
Many plugins available free that helps you to make your website more seo-friendly.

Google Sitemap Generator : Sitemap makes search engine easy to crawl all the pages. With the help of this, you can create the sitemap for your blog and submit it in google webmaster tools.

Optimize your Meta Description Tag : Meta descriptions are not very important, but still helpful in yahoo and other search engines. With the help of this plugin, you can manually insert the meta description for each post separately.

Title Tags Generator : Titles are still important. Install this plugin and insert title tags for each post.

Optimize Images :
Image optimization is the basic on-page seo. The visitors enters the website with the help of images also. So must include alt tags in the images.

Change the default Wordpress Theme:
The default wordpress theme is not very impressive. Lots of free attractive themes available. Download the theme and replace it with default. This makes your wordpress blog more professional.

Add noindex and nofollow to Category and Archieves:
Add noindex to categories, archieves, tags to avoid duplicate content issue. To insert noindex in the archieve, goto Theme Editor>header.php and replace with "meta name="robots" content="noindex"

(source: http://tipsofseo.blogspot.com)

The Google optimization process is not fully structured, but could result in the following steps:

1) Analysis of competition.

A competitive analysis will help us to know what strategies they are using those "fight" with our company to win the segment. Through this research we know your keywords, its strengths and weaknesses. This does not mean it will copy all of its attributes, but watching you learn. Learn about our competitors will be very useful to know where we can fight and how we improve.

On Page Optimization is the most important and complex part of search engine optimization. This website helps your search engine ranking through their keywords need. It should be kept based on which some great tips on optimizing your site for articles while the page is going.

This website helps you rank your page or your keywords to increase search engine ranking will depend on the page of your website search engine optimization on any kind of score. It is mainly seen on page factors of your index page, set your keyword rankings.

Page optimization is often forgotten these days, because we focus more and inbound links with targeted anchor text to get more of our time. - Optimization page, but you quickly to do something yourself an extra boost in the SERPS can offer.