Megawebpromotion.com seems like a legitimate website and have been online since 20004. However there are a Link hidden: Login to view maybe a Link hidden: Login to view that seem to say otherwise.
And based on the responses I read on the other forums, the common suggestion is to do the website submission yourself or have an employee or pay individual to do it for you rather than hire the services of companies such as the one you are asking about.
You might find the tips in this Link hidden: Login to view helpful.
You'll also I think Alice's latest video blogs on Link hidden: Login to view will help you promote your business on your own :)
Hope this helps.