Visit here: How to build successful business online.

Any comments will be appreciated.

Some comments:
"How to choose a good domain name?" is not a question.

This advice is a bit vague:
"How to register domain name?
Think of the domain names you want to use.
Go to domain registrars and apply for the domain name.
Set the DNS IP address and name server of your host, then after 24/48 hours You can access your website through your domain name."
You need some links and explantions about DNS and IP address. Otherwise, if your visitors know what these are, they don't need your site!

I took a quick look at web hosting - it is very superficial. You don't explain what hosting is and why it is needed. Then what about the location of a host - in UK/USA advanatges/disadvantages? Email - what about SMTP? You say of Unix "It's very popular amongst enterprise servers." What's an enterprise server?. You mention Linux in a header, but no more.

My feeling is that your site is falling between two stools. You have enough subjects to write a couple of books, but not enough detail to answer all but the most simple questions. But then you assume a high level of knowledge by not explaining many statements for beginners. Advancies don't need to ask such questions, newbies will soon be lost...

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Paul Bilton design services ~ Sites not Sights

Thanks Paul.
Any more opions?

made some changes