The most popular way to add an online store to your WordPress blog is to use the WP E-Commerce plugin. However, recently (Nov 08′) Roya Khosravi has released a new plugin called WP-osCommerce (WP.osC) that should be replacing the old standard very soon.
So what is the difference between these two plugins? Quite a bit actually. These two plugins have very little to do with each other except they both allow you to easily add a store to your WordPress blog.
WP E-Commerce plugin is a proprietary software that was built with a goal of getting the user to upgrade the plugin for a fee, while the WP-osCommerce (WP.osC) plugin was built using a completely free and open-source software called OS-Commerce.
WP E-Commerce is buggy and has no community support behind it. If something doesn’t work right with your site, where do you go for help? I feel the lack of support and buggy nature of WP E-Commerce rules it out as a reliable means to create an online store.
OS-Commerce is a highly popular and free software to create an online store. The WP-osCommerce (WP.osC) plugin allows you to integrate OS-Commerce directly into your blog and keep the WordPress theme system. The online community support is huge for OS-Commerce and even WP.osC has started a new and growing community for support.
You can download WP.osC from http://wposc.com/. There are many helpful tutorials on how to set up WP.osC as well as a community forum to help you get started there.
Technorati Tags: WP-osCommerce, WP.osC, OS-Commerce, WP E-Commerce, online store, wordpress blog, add store, online store blog, online store wordpress, wordpress plugin, monetize blog, open source, community support, Roya Khosravi, VS, online store theme, online store php, Free Online

Wow! Greate news and thank you for letting us know it.
By the way congratulations for you blog!
Saw this post and thought i would throw my hat into the ring so to speak. My team are about a week away from creating the “holy grail” of wordpress ecommerce a fully functional and secure osCommerce plug in for WP.
Yes it is a monster task, but thankfully i have a genius running the team and we are 80% with no issues to date.
We are also looking for beta testers..you can sign up at http://www.wponlinestore.com
Cheers
Garf