My Number 1 web site marketing internet business tip is to have a great Domain Name.
Here are some considerations.
Top Level domains are the bit after your domain name, for example, .com, .org, .co.uk, .net, .eu, .de, .tv
What shoud you go for? Internet data suggests .com is the best. This is followed by generic domains such as .org and .net. Finally, popular country ones such as .de, .co.uk, .au.
The rules on domain names is changing and becoming more commercial and focussed on particular market area such as .tv. This may open further opportunities for you depending on your business.
If you can, buy a .com.
They do not make much difference to Spiders so it is a personal choice. With dashes can be easier to read.
Personally, I would use them if it meakes the domain names easier to read. Or if you can only get the .com version with dashes.
It is usually better to buy a domian name containing your website concept (for Spiders) Add to this an element of your VPP to make it easy for your human visitors to make it understandable. For example - "online business" for the Spiders and "Academy" for the people.
Your Domain Name comes with your SBI Subscription.
Apart from them, my favourite Domain Name Broker is www.easily.co.uk.
You can also do a Google Search for thousands of Domain Name brokers.