As we all know wordpress is the great open source available online and having millions of satisfied user (designers and general people online). Though wordpress is a blogging tool but has been customized and used as a dynamic website by many designers. Actually wordpress is fulfilling all the needs of designers/developers to have a customized blog or a website.
Another great feature I would like share is Wordpress Shopping Cart – one can easily convert wordpress into a dynamic e-commerce site or an online store.
How to convert wordpress blog to an online store or to a shopping cart? There exist some really great themes an plug-ins which can really convert your wordpress blog to an online store in just minutes.
Some of the resources to convert wordpress in an online store / shopping carts are:
Market Theme - a wordpress paid theme which can convert your blog to an online store. The theme is very simple to install and works like the other free or paid themes you using in wordpress.

The main featuers of Market theme includes:
Original Layout Design
Its an original Wordpress theme, handcrafted and looks like a regular blog but act like a storefront. The theme is easily customizable / editable.
Grid-View Storefront
If you don’t want to use the default blog / storefront split homepage you can use the included storefront template to display a gridded product view for your site.
Market Product Manager
The Market Product Manager makes adding products an incredibly easy task. If you can write a post, you can add a product. The Market Product Manager (MPM) does it all for you.
Pricing
Market theme is available in Standard License (for sole owners wants to run a shopping cart on one site or maybe a few of their sites) for $55 and in Developer License (for designers and developers wants to create a shopping cart through Market theme as part of client work) for $150.
Ecommerce Themes is another good wodpress shopping cart theme which allows one to convert your simple blog to an online store. Using Ecommerce Theme for wordpress one can create and manage his own online store and sell products.

The theme is easily customizable, search engine friendly, available in six color styles and allows one to manage store online through wordpress admin.
The theme is really low-cost and fast solution to get your stores online. One can get Single-Use Package for only $49 and Developer’s Package for only $199.
WordPress e-Commerce plugin is a free shopping cart plugin for wordpress suitable for selling your products and services online.
The main features of wordpress e-commerce plugin includes:
- Works with WordPress 2.5
- Google Checkout - Level 2 Integration
- USPS & Shipwire Integration
- Facebook Integration
- Search Engine Friendly
- DPS / Paystation Integration
- PayPal IPN integration
- Web 2.0 powered DropShop Shopping Cart
- Web 2.0 powered Sliding Shoping Cart
- Audio Player Module for selling MP3 files and digital downloads
- Purchase records downloadable as CSV file
- RSS product feeds
- Configurable Tax settings
So why paying lot of money to development companies to have an complicated e-commerce store when you can have a low-cost wordpress online store which can really save your time, money and hassle of developing a custom e-commerce store online.