If you are looking to open an internet sales channel, then MercatX can help with:

Definition of product catalogues and product categories
Configuration of product pricing and promotions

Loading and synchronisation from huge product catalogues
Definition of VAT rules for multiple countries
Implementation of variable shipping rules
Choice of application and database
Configuration of workflow and emails
Hosting, backups and security

Integration with 3rd party systems and web services

Auto-linking Google AddWords with product catalogue

Web campaign management and cross-site syndication

MercatX 1st: Use Protx with Ofbiz

The market for MercatX Ltd revealed by recent BT survey