Broken Link Checker
Quickly find out if you have any broken links on your Website so you can fix them.
Domain Tools
Domain Look Up Tool
Retrieve information about a domain including age of domain, speed, Dmoz listings, Current PageRank, Predicted PageRank, Alexa Ranking, Backlinks, Listings on Google/MSN/Yahoo and the Website’s competition.
Website Speed Tester
Find out how fast your Website is and compare it to your competitors!
Domain Name Finder
This tool makes the task of finding a keyword rich domain name much easier. This tool searches the top 100 Google searches based on your keyphrase, and will then discover whether those domain names are available to you!
As a successful ecommerce retailer I can tell you that the techniques taught by NetSalesTrainer are what I have used to generate thousands of sales. It is a very comprehensive, easy to follow course that does not break the bank. 
If you are new to ecommerce it seems almost impossible to find all the information you need to get started all in one place, so I'm pleased I found NetSalesTrainer. From start to finish, I found the course easy to follow. Not only are there videos which I find much better than learning from a book but there's also lots of useful tools along the way.
Using NetSalesTrainer was easy. I found that to be able to watch videos of things being done made it much less of a chore when it came to replicating it on my site. Also, I was very pleased at being provided all the resources within each lesson. It meant I didn't have to spend too much time working out how to use them!